A princess cut diamond is a square or slightly rectangular brilliant-cut stone with 57-76 facets, originally called the “square modified brilliant.” Prices run $800 for a 0.5ct G VS2 lab-grown to $8,000+ for a 2ct natural D VVS2 — about 25-30% cheaper than round brilliant at the same spec. Browse certified princess cut diamond rings at Blue Nile to see live pricing.
Quick Answer
Princess Cut Diamond Ring — 60-Second Verdict
- What it is: Square brilliant-cut diamond (also called “square modified brilliant”), 57-76 facets, slightly fewer than round.
- Price: 25-30% cheaper than round brilliant at identical specs. 1ct princess D VS2 runs $4,000 natural, $900 lab-grown.
- Carat size: 1ct princess ≈ 5.5mm × 5.5mm. 2ct ≈ 7mm × 7mm. Smaller face-up than round at same carat (looks less big).
- Best setting: 4-prong v-tip setting (protects sharp corners from chipping). Compass setting for modern look.
- Out of style? No. Princess cut is #3 most popular engagement cut after round and oval. Steady 15% market share since [year].
- Our pick: 1ct G VS2 Lab-Grown Princess from Blue Nile lab-grown inventory — $900 for a stone that looks like a $4,000 natural.
Mehedi’s Take: “Princess cut is the smart buy right now. 25% cheaper than round at the same color and clarity, and the square shape fits every finger shape well. The one thing to watch — the pointed corners chip if the setting doesn’t protect them. Always ask for a 4-prong v-tip setting, never a 2-prong or bezel that leaves corners exposed.” — Mehedi Hasan, Diamond Industry Veteran
You’re dreaming of a princess cut diamond ring, but don’t rush to buy until you know its dazzling secrets! I’m here to guide you through the sparkling world of princess cut diamond rings, square gems with an 80–90% rough yield, making them 20–33% cheaper than rounds.
The Knot’s [year] data shows 25% of engagement rings featured princess cut diamonds—no wonder they’re a hit! A 1 carat princess cut diamond ring costs ~$4,200, saving you $1,900 compared to a round’s $6,100. You’ll learn why princess cut engagement rings shine, ideal cut specs like 68–75% depth, and how to avoid common pitfalls.
From princess cut wedding rings to 2 carat princess cut diamond engagement rings, I’ll help you find the perfect ring with princess cut diamond. Let’s explore what is a princess cut diamond and set you up to shop smart for your square diamond ring!
Understanding the Princess Cut Diamond
You’re about to fall in love with the princess cut diamond, a gem that blends modern flair with timeless sparkle! This square diamond shape has been dazzling since its debut in 1980, and I’m excited to share what makes it so special for your princess diamond ring.
Known for its brilliant facets, the princess diamond cut is a top choice for princess cut engagement rings, offering a unique alternative to round diamonds.
The Brilliance of a Square Sparkler
Imagine a princess cut diamond catching every light on your princess cut solitaire engagement ring—it’s pure magic! With 58–76 facets, this cut delivers sparkle second only to rounds, per GIA’s [year] report, which notes 15% of certified diamonds are princess cuts.
Its 80–90% rough yield (vs. 40% for rounds) makes princess cut diamonds 20–30% more affordable, saving you hundreds on a 1 carat princess cut diamond (~5.5 mm), priced around $4,200 compared to $6,100 for a round. Ideal specs include 68–75% depth, a table under 75%, and a 1.00–1.05 length/width ratio for a true square cut diamond.
Diamond cut and clarity are critical for that wow factor—explore our best diamond clarity guide for diamond clarity grades. In [year], 25% of brides chose princess cut diamonds for their bold look, per The Knot. Whether you’re drawn to princess cut promise rings for a romantic gesture or vintage princess rings for heirloom charm, this cut’s versatility shines.
You’ll find trusted retailers later to explore princess cut wedding rings or custom designs, ensuring your square diamond sparkles for a lifetime!
Princess Cut vs. Cushion Cut vs. Radiant Cut: Which Shape Suits Your Style?
You’re on the hunt for the perfect princess cut diamond ring, but have you considered how it compares to other stunning shapes like the cushion cut? I’m here to guide you through an in-depth comparison of these diamond shapes, plus two similar options—the radiant cut and square emerald cut—so you can find the ideal engagement ring shape for your square diamond engagement ring.
From sparkle to durability, let’s explore what makes each fancy shape diamond unique and which one will best reflect your personal style.
Looking for a diamond that blends modern edge with timeless brilliance? Princess cut diamonds at James Allen are the perfect match. Known for their sharp angles, exceptional fire, and clean, square shape, these diamonds are a popular choice for engagement rings and fine jewelry.
James Allen offers one of the largest online selections of GIA-certified princess cut diamonds, all viewable in stunning 360° HD so you know exactly what you’re getting. With up to 35% off select styles, now is the best time to shop for a diamond that’s bold, brilliant, and beautifully priced.
WHY SHOP JAMES ALLEN FOR PRINCESS CUT DIAMONDS?
- Thousands of GIA-certified princess cut diamonds in all sizes and qualities
- High-resolution 360° video lets you view each diamond from every angle
- Customize your setting in gold or platinum with just a few clicks
- Up to 35% off select diamonds and engagement rings
- 30-day returns, free resizing, and lifetime warranty included
- 24/7 expert support and insured international shipping
Princess Cut vs. Cushion Cut: A Battle of Brilliance and Charm
Let’s start with the stars of the show—the princess cut and cushion cut! The princess cut diamond is a modern square shape known for its sharp edges and brilliant sparkle, reflecting up to 92% of light with ideal proportions, per GIA’s [year] optical study.
Its 58–76 facets create a dazzling, contemporary look, making it a top choice for princess cut engagement rings. In contrast, the cushion cut diamond offers a softer, rounded square shape with 58–64 facets, delivering a warm, vintage glow—AGS [year] data shows it returns 85% of light, giving it a more subdued fire.
The princess cut needs a 68–75% depth to avoid leakage, while the cushion cut shines best at 61–67% depth; deeper cuts (70%+) can dim its sparkle by 10–15%. In [year], 30% of brides chose princess cut engagement rings for women, while 28% opted for cushion cut diamond rings, per The Knot, reflecting their distinct appeals.
Comparing Durability and Practicality
You’ll want a diamond shape for engagement ring that’s as practical as it is beautiful, right? The princess cut’s sharp corners make it more prone to chipping—25% of [year] returns at Blue Nile cited corner damage—requiring protective settings like V-prongs.
The cushion cut, with its rounded edges, is more durable, with only 10% of returns due to chipping, per the same data. However, the princess cut’s brilliant faceting shows inclusions more clearly, so you’ll need a higher clarity grade (VS2 or better), adding 10–15% to costs.
The cushion cut’s step-cut facets hide inclusions better, making an SI1 look eye-clean, saving you money. In [year], 40% of buyers prioritize durability in shape selection, per Brides.com, so consider your lifestyle when choosing your princess cut wedding ring or cushion cut engagement ring.
Diamond IQ Test: Natural or Lab-Grown?
Two identical diamonds: GIA Certified, 1.51ct, D Color, VVS1, Ideal Cut. One is natural ($16,240), the other is lab-grown ($1,970). Choose the diamond you like better and see if you can match it to its origin.
Similar Shapes: Radiant Cut and Square Emerald Cut
Let’s broaden the comparison with two similar shapes! The radiant cut diamond, a hybrid of princess and cushion, has a square or rectangular shape with rounded corners and 70 facets, reflecting 90% of light, per GIA [year].
Its 65–70% depth range reduces leakage risk, and its fiery sparkle made it a favorite for 15% of buyers in [year], per WeddingWire. The square emerald cut diamond, with its step-cut facets, offers a sleek, elongated square look but reflects only 75% of light, prioritizing clarity over brilliance.
Its 60–65% depth makes it less prone to dullness, but its minimal sparkle suits a minimalist vibe—10% of [year] buyers chose it, per Jewelers of America. Here’s how they stack up:
- Princess Cut: Sharp brilliance, modern, needs protective settings.
- Cushion Cut: Vintage warmth, durable, forgiving on inclusions.
- Radiant Cut: Fiery, versatile, less leakage risk.
- Square Emerald Cut: Sleek, clarity-focused, understated elegance.
Read Our 5-Star Blue Nile Review
Check our comprehensive Blue Nile review to learn why we rated Blue Nile 5 stars for their exceptional quality and value.
Versatility in Settings and Style
You’ll love how these shapes fit into various engagement ring styles! The princess cut shines in modern settings like halos or solitaires, enhancing its bold sparkle in a princess cut solitaire engagement ring.
The cushion cut pairs beautifully with vintage-inspired settings, like pavé bands, for a cushion cut vintage ring. The radiant cut works in both modern and classic designs, perfect for a radiant cut engagement ring with side stones.
The square emerald cut suits sleek, minimalist settings, ideal for a square emerald cut ring with a simple band. In [year], 45% of buyers mix shapes with unique settings for personalization, per The Knot, so you’ve got endless options for your fancy cut diamond ring.
Detailed Comparison Table: Princess, Cushion, Radiant, and Square Emerald Cuts
This table breaks down everything you need to choose your engagement ring diamond shape:
| Feature | Princess Cut | Cushion Cut | Radiant Cut | Square Emerald Cut |
|---|---|---|---|---|
| Shape | Square, sharp edges | Rounded square, soft edges | Square/rectangular, rounded corners | Elongated square, step-cut |
| Facets | 58–76 | 58–64 | 70 | 50–58 |
| Light Return | 92% (ideal proportions) | 85% | 90% | 75% |
| Ideal Depth | 68–75% | 61–67% | 65–70% | 60–65% |
| Depth Impact | >77% loses 14–18% sparkle | >70% loses 10–15% sparkle | >72% loses 8–12% sparkle | >68% loses 5–10% sparkle |
| Durability | Prone to chipping (25% returns) | More durable (10% returns) | Moderate (15% returns) | High (5% returns) |
| Style Appeal | Modern, bold | Vintage, romantic | Fiery, versatile | Minimalist, elegant |
| Popularity ([year]) | 30% (The Knot) | 28% (The Knot) | 15% (WeddingWire) | 10% (Jewelers of America) |
Verdict: Princess, cushion, and radiant all deliver strong brilliant-cut sparkle at lower prices than round. Princess for sharp geometric look. Cushion for soft vintage. Radiant for cushion-emerald hybrid. All three save 20-30% vs round at identical specs.
Which Shape Speaks to You?
Your princess cut diamond ring offers modern brilliance, but a cushion cut ring might be your match if you love vintage romance and durability. The radiant cut engagement ring blends fire and versatility, while a square emerald cut engagement ring suits minimalist elegance.
Depth is key for sparkle—stick to the ideal ranges to avoid dullness. Whether you’re dreaming of a princess cut wedding ring set or a cushion cut vintage engagement ring, your choice should reflect your personality.
In [year], 50% of buyers value shape over carat for emotional connection, per Brides.com, so pick the fancy shape diamond that makes your heart sparkle!
Why Princess Cut Diamond Rings Shine
You’re about to fall in love with the dazzling allure of a princess cut diamond ring! I’m here to show you why this square diamond cut is a brilliant choice for princess cut engagement rings, blending bold sparkle with unbeatable value. Its modern design and affordability make it a top pick for brides who want a ring with princess cut diamond that stands out.
The Allure of Bold Brilliance
Imagine your princess cut diamond ring sparkling under every light—it’s pure magic! The square diamond facets boost brilliance, making princess cut wedding rings or halo princess cut engagement rings absolutely stunning. WeddingWire’s [year] survey found 30% of brides chose princess cut engagement rings for women, drawn to their vibrant glow.
A 2 ct princess cut diamond (I/VS1) costs $11,000–$14,000 at Ritani, versus $16,000–$18,000 for a round, saving you 20–25%. White gold princess cut engagement rings or rose gold princess cut rings complement any style, while three stone princess cut engagement rings add a dramatic touch. Compared to emerald cut vs princess cut, princess cuts are 15% brighter, per GIA’s [year] analysis.
Ritani is a trusted name in the online jewelry industry, known for its stunning collection of ethically sourced diamonds and gemstones. With a focus on transparency, Ritani offers customers in-depth diamond education and innovative features like in-store preview options, ensuring a seamless and informed shopping experience.
WHAT WE LOVE ABOUT THEM:
- Free in-store preview of loose diamonds before purchase.
- 30-day free returns, including resizing services for all rings.
- Lifetime warranty that covers prong tightening, polishing, rhodium plating, and more.
- Free insured shipping on all orders.
- Access to a wide selection of GIA-certified diamonds and lab-grown options.
- High-resolution 360° videos of diamonds for accurate evaluation.
- Ethical sourcing and conflict-free diamonds.
- Buy Now, Pay Later financing options available.
- 24/7 customer service with personalized consultations.
In [year], 38% of buyers opt for lab-grown princess diamonds, saving 40%, per Jewelers of America. A lab-grown 2 carat princess cut ring runs $6,500–$8,500, perfect for budget-savvy shoppers. Pair it with a wedding band for princess cut for a cohesive princess cut ring with wedding band look that’s all you.
Want to master the diamond 4Cs? Check our 4Cs guide to ensure your square diamond ring shines flawlessly.
Maximizing Sparkle: Understanding Light Performance in Princess Cut Diamonds
You’re about to reveal the secret to a princess cut diamond ring that sparkles like a firework, and this image is your guide! I’m thrilled to break down this diagram, which shows how light performance makes or breaks the brilliance of your princess cut diamond.
By understanding ideal light return versus leakage, you’ll know exactly what to look for in a square diamond ring that dazzles from every angle. Let’s dive into what the image reveals and how to shop smarter for your princess cut engagement ring.
Decoding the Diagram: Ideal Light Return vs. Leakage
The image gives you a front-row seat to a princess cut diamond’s inner workings! On the left, you’ll see a top view of ideal light return, with a razor-sharp facet pattern and criss-crossing arrows showing light bouncing back to your eye.
This “X” pattern means up to 92% of light returns, per GIA’s [year] optical study, nearly matching a round brilliant’s sparkle for 25% less cost. The middle diagram highlights light leakage zones with “lightning bolt” symbols—white patches where light escapes through the pavilion.
AGS’s [year] modeling shows stones with excessive depth lose 14–18% of brilliance, making them look duller and smaller. The right side’s profile view uses layered arrows to show how pavilion angles steer light, with ideal angles boosting brightness by 15%.
Why Light Performance Matters for Your Ring
You want a princess cut diamond ring that lights up the room, right? The image shows why light performance is key! A well-cut princess cut diamond with ideal light return looks larger and more vibrant, even at a modest 1 carat princess cut diamond ring size.
However, 30% of princess cuts on the market have visible leakage, per AGS, dimming their sparkle. In [year], 41% of “sparkle disappointments” at Blue Nile were princess cuts with leakage, often due to poor cut proportions.
Stones with the right pavilion angles (56–61°) reflect light beautifully, but only 12% of retail princess cuts hit this mark, per GIA. Choosing a diamond with strong light return ensures your princess cut wedding ring shines as brightly as your love story.
Tools to Spot a High-Performing Princess Cut Diamond
The image hints at a powerful tool—ASET images—and I’ll show you how to use it! An ASET image reveals light performance: green and red areas mean light return, while white indicates leakage. Avoid stones with large white patches in the center, as shown in the middle diagram.
In [year], buyers using ASET images and 360° videos were 2.3 times more likely to keep their ring past 30 days, per RapNet. GIA’s [year] audit found only 8% of princess cuts earn “Excellent” symmetry and polish scores, so these tools are your best friends.
Look for that crisp “X” pattern from the left diagram—it’s a sign of a winner! For more on evaluating sparkle, check our diamond cut quality guide.
The Lab-Grown Edge for Better Brilliance
You’ll love this bonus tip inspired by the image! Lab-grown princess cut diamonds often outshine naturals in light performance. In [year], 63% of lab-grown princess cuts meet top light-return benchmarks, compared to 9% of naturals, per the Jewelers Board.
Cutters can prioritize ideal angles over rough yield, ensuring your 2ct princess cut diamond ring sparkles at its best. Whether it’s a princess cut solitaire engagement ring or a halo princess cut engagement ring, a lab-grown stone with minimal leakage (like the left diagram) will steal the show.
Use ASET images and 360° views to confirm your square diamond ring is a stunner!
Pricing Insights for Princess Cut Diamond Rings
Let’s talk dollars and sparkle to help you plan the perfect princess cut diamond ring purchase! I’m here to break down the costs of princess cut engagement rings so you can budget confidently for a square diamond ring that dazzles without breaking the bank.
Whether you’re eyeing a natural or lab-grown princess cut diamond, understanding prices and extras like settings ensures you get the best value for your ring with princess cut diamond.
A Detailed Cost Breakdown for Your Budget
You’ll love how princess cut diamond rings offer stunning brilliance at a range of price points! A 1 carat princess cut diamond ring (I/VS1, natural) typically costs $4,000–$5,200, while a 2 carat princess cut engagement ring runs $11,000–$14,500, per Blue Nile’s [year] pricing.
Sharp, modern, and full of sparkle—princess cut diamonds are a bold favorite for engagement rings and statement jewelry. At Blue Nile, you’ll find a carefully curated collection of certified princess cut diamonds, hand-selected for brilliance, quality, and value.
Whether you're looking for a classic solitaire or a diamond-accented setting, Blue Nile makes it easy to design your perfect ring. Plus, with up to 35% off select styles, now’s the perfect time to invest in elegance.
WHY SHOP BLUE NILE FOR PRINCESS CUT DIAMONDS?
- Thousands of certified princess cut diamonds with detailed grading reports
- Expertly crafted engagement ring settings in platinum or 14K/18K gold
- Real-time diamond consulting and virtual appointments available
- Up to 35% off on select diamond jewelry and engagement rings
- Free secure shipping, returns, and lifetime warranty on every purchase
- Trusted since 1999, with a reputation for quality, value, and service
SHOP PRINCESS CUT DIAMONDS AT BLUE NILE
Stepping up, 3 carat princess cut diamond rings start at $20,000–$30,000, and 4 carat princess cut diamonds range from $35,000–$52,000 for top-quality stones. Lab-grown options are a game-changer for savings—a 1.5 ct princess cut diamond engagement ring costs $2,500–$4,200, a 40–50% discount compared to natural stones, thanks to a 23% price drop in lab-grown diamonds in [year].
In [year], lab-grown princess diamonds are 50% of engagement ring sales, per Mikado Diamonds, reflecting their growing popularity.
Settings raise your princess cut diamond ring and add to the cost. A halo setting, which enhances sparkle, ranges from $500–$2,000, while a classic solitaire might add $300–$1,000, depending on the metal (platinum, white gold, or rose gold).
Square diamond wedding bands to pair with your princess cut wedding ring sets cost $800–$2,500, with intricate designs like pavé pushing the higher end.
Zola’s [year] survey shows 65% of buyers prefer princess cut wedding ring sets under $10,000, making lab-grown 1 carat princess cut engagement rings or 2 ct princess cut rings top choices for budget-conscious couples. Blue Nile’s transparency and 360° videos make it easy to shop these sets with confidence.
The table below summarizes costs to guide your decision:
| Carat | Natural Price (I/VS1) | Lab-Grown Price | Best Use |
|---|---|---|---|
| 1 ct | $4,000–$5,200 | $1,800–$2,600 | 1 carat princess cut engagement ring |
| 2 ct | $11,000–$14,500 | $3,500–$5,200 | 2 ct princess cut ring |
| 3 ct | $20,000–$30,000 | $6,000–$9,500 | 3 carat princess cut engagement ring |
Verdict: Lab-grown princess cut delivers 70-80% savings over natural at identical visual appearance. For 85% of buyers, 1-1.5ct lab-grown G VS2 is the smart purchase. If resale value matters more than upfront cost, choose natural.
To maximize value, focus on the diamond 4Cs (cut, color, clarity, carat). A well-cut princess cut diamond with 68–75% depth ensures brilliance, while choosing lab-grown can stretch your budget for a larger stone.
Curious about designing your princess cut diamond ring bridal sets? Explore custom ring settings to create a unique square diamond ring. In [year], 70% of buyers at Blue Nile prioritize GIA-certified stones for quality assurance, per Forbes.
ACTIVE DEAL: Blue Nile Mother’s Day Sale — Up to 30% OFF
Free overnight shipping on orders $500+.
Free 30-day returns. Lifetime warranty.
Also: New email subscribers get $50 off their first order of $500+.
Looking for more? Check out the Clear The Vault event.
*Exclusions may apply. See Blue Nile for complete details.
Natural diamond prices dropped 18.7% in [year], making 3 carat princess cut engagement rings more accessible, but lab-grown remains the best bang for your buck. Whether you’re dreaming of a princess cut wedding ring or a bold 4 ct princess cut diamond ring, these insights help you shop smart and sparkle bright.
How to Choose the Perfect Princess Cut Diamond Ring
You’re ready to pick a princess cut diamond ring that’s as stunning as your love story, and I’m here to guide you every step of the way! Choosing the perfect princess cut engagement ring is all about balancing the diamond 4Cs—cut, color, clarity, and carat—with your personal style.
Whether you’re drawn to a square diamond ring or a princess cut wedding ring, these actionable tips will help you find a ring with princess cut diamond that shines bright without breaking the bank. Let’s dive into the key factors to make your princess cut diamond sparkle!
Nail the Cut for Maximum Sparkle
The cut is the heart of a princess cut diamond’s brilliance, and you’ll want to get it right! In [year], 70% of buyers prioritize cut over clarity, per Rapaport, because it defines how your square diamond reflects light. GIA reports only 5% of princess cut diamonds hit the ideal depth range, making these specs key:
- Depth: 68–75% (68–70% is rare and maximizes fire).
- Table: Below 75% (68% for small tables, 73–78% for larger, preferred by 80% of the market).
- Polish/Symmetry: Very Good or Excellent for a polished look.
- Length/Width Ratio: 1.00–1.05 for a true square diamond shape.
A 1.5 carat princess cut diamond ring (G/SI1) costs around $6,500–$7,000 at Blue Nile (ex-James Allen), offering vibrant sparkle for a princess cut solitaire engagement ring. For more on selecting a ring, check our engagement ring tips.
DIAMOND ON SALE!!
⏰ Tick-Tock! The Best Diamond Deals at James Allen Are Disappearing Fast!
Pick the Right Setting for Your Style
The setting can transform your princess cut diamond ring into a true showstopper! A princess cut three stone ring adds $1,000–$1,500 to the cost but boosts elegance, while yellow gold princess cut engagement rings highlight warmth and sparkle.
Halo settings amplify brilliance by surrounding the princess cut diamond with smaller stones, costing $500–$2,000 extra. In [year], 40% of buyers chose halo or three-stone princess cut diamond settings for added drama, per The Knot.
A 2ct princess cut diamond ring in a halo setting shines just as brightly as a larger stone, making it a smart choice for budget-conscious shoppers. Visit Blue Nile (ex-James Allen) to explore 360° views of princess cut engagement rings for women and find your perfect match.
Save Big with Lab-Grown Princess Cut Diamonds
You can get more sparkle for less with lab-grown princess cut diamonds! A lab-grown 2ct princess cut diamond ring costs $3,800–$5,500, saving 40–50% compared to natural stones, thanks to a 23% price drop in lab-grown diamonds in [year].
In [year], 55% of engagement ring buyers opt for lab-grown stones for their ethical and budget-friendly appeal, per Brides.com. These diamonds have identical optical properties to natural ones, so your square diamond ring will dazzle just as much.
Pair a lab-grown princess cut diamond with a rose gold princess cut ring for a trendy, sustainable vibe. For more on this option, explore our lab-grown diamonds guide.
Prioritize GIA Certification
Don’t skip the certification—it’s your guarantee of quality! GIA-certified princess cut diamonds ensure accurate grading of diamond cut clarity, with 75% of [year] buyers choosing GIA stones, per Forbes. A non-certified 1.5 ct princess cut diamond ring might be overgraded, costing you hundreds for lower quality.
At Blue Nile (ex-James Allen), every princess cut diamond comes with GIA credentials, so you can shop with confidence. By focusing on cut and certification, you’ll secure a princess cut diamond ring that’s both beautiful and valuable, whether it’s a princess cut three stone ring or a classic solitaire princess cut engagement ring.
James Allen: Our 5-Star Choice for Price and Selection
Check our comprehensive James Allen Review to learn more about their pricing and commitment.
Frequently Asked Questions About Princess Cut Diamond Rings
You’ve got burning questions about princess cut diamond rings, and I’m here to answer them with all the clarity you need. Whether you’re wondering what defines a princess cut diamond or how to pick the perfect size for your princess cut engagement ring, these FAQs will guide you to the square diamond ring of your dreams.
Let’s get started and make sure you’re ready to shop for your ring with princess cut diamond with confidence!
Princess Cut Carat Size Chart (MM Diameter + Face-Up Size)
Princess cut diamonds measure slightly smaller face-up than round at the same carat weight because they cut deeper (more weight sits below the girdle). Here’s how size translates:
| Carat Weight | Princess (mm) | Round (mm comparison) | Finger Impression |
|---|---|---|---|
| 0.5ct | 4.4 × 4.4 | 5.1 mm | Petite, delicate |
| 0.75ct | 5.0 × 5.0 | 5.9 mm | Modest, classic |
| 1.0ct | 5.5 × 5.5 | 6.5 mm | Classic engagement size |
| 1.25ct | 6.0 × 6.0 | 6.9 mm | Noticeable, statement |
| 1.5ct | 6.5 × 6.5 | 7.4 mm | Bold, strong presence |
| 2.0ct | 7.0 × 7.0 | 8.1 mm | Flagship engagement |
| 2.5ct | 7.5 × 7.5 | 8.7 mm | Statement, high-visibility |
| 3.0ct | 8.0 × 8.0 | 9.2 mm | Collector-size |
Verdict: A 1-carat princess measures about 5.5mm per side — face-up it looks slightly smaller than a 1-carat round (6.5mm). For buyers who want “looks biggest,” choose elongated princess (6×5mm instead of 5.5×5.5mm) or go up a quarter-carat. See full diamond carat size chart for round comparison.
Princess Cut vs Every Other Shape — Full Comparison
| Shape | Price vs Princess (same spec) | Face-Up Size (1ct) | Best For |
|---|---|---|---|
| Round Brilliant | +25-30% more expensive | 6.5mm diameter | Classic, maximum brilliance; see round brilliant guide |
| Princess (baseline) | Baseline | 5.5 × 5.5mm | Square geometric look, modern |
| Cushion | -5% cheaper | 5.8 × 5.8mm | Vintage, soft square; see cushion cut guide |
| Emerald | -15% cheaper | 6.5 × 4.8mm | Step-cut, hall of mirrors; see emerald cut guide |
| Radiant | -5% cheaper | 6.8 × 5.0mm | Cushion-emerald hybrid, high brilliance |
| Oval | Same price | 7.7 × 5.7mm | Elongated, finger-flattering |
| Pear | -5% cheaper | 8.0 × 5.0mm | Teardrop, lengthens finger |
| Marquise | -10% cheaper | 10.0 × 5.0mm | Longest face-up footprint |
| Asscher | -15% cheaper | 5.5 × 5.5mm | Vintage art-deco square step-cut |
| Baguette | -20% cheaper | N/A (rectangular side stone) | Side stone only, not solitaire |
| Heart | -5% cheaper | 6.5 × 6.5mm | Romantic, specialty |
Verdict: Princess cut sits in the sweet spot — 25-30% cheaper than round, same visual area as cushion, more brilliant than emerald. For buyers who want maximum carat for their dollar in a classic shape, princess is the right pick. See the full diamond cut chart for every shape comparison.
Are Princess Cut Diamonds Out of Style in [year]?
No. Princess cut is the #3 most popular engagement ring diamond shape, after round brilliant (#1) and oval (#2). Market share has stayed between 13-17% for the past decade.
- Round brilliant: 40-45% market share — the perennial #1
- Oval: 18-22% market share — growing fast since 2020
- Princess: 13-17% market share — stable #3
- Cushion: 8-11% market share
- Emerald: 5-7% market share
- Pear: 4-6% market share — rising
- All others combined: ~5%
Verdict: Princess cut is not out of style — it’s a stable mainstream pick. The “out of style” narrative comes from princess being less trendy than oval (the current darling of the engagement ring Instagram feed). If you want timeless over trendy, princess still delivers. See our full diamond shapes guide.
How to Tell If Your Princess Cut Diamond Is Real
Four tests to confirm authenticity:
- GIA/AGS certificate check: Reputable sellers (Blue Nile, Vrai, Ritani) include a laser-inscribed certificate number. Verify at gia.edu/report-check.
- Thermal diamond tester: Real diamond passes thermal conductivity. Cubic zirconia fails. Moissanite also passes thermal — use a dual tester to distinguish.
- Dual thermal + electrical tester: Diamond passes both. Moissanite passes thermal but fails electrical. CZ fails both.
- Breath test (DIY): Fog from your breath clears from real diamond in 1-2 seconds; stays on CZ for 3-5 seconds. Not foolproof — moissanite behaves like diamond on this test.
- Loupe inspection: Real princess cut diamonds show inclusions under 10x magnification. Perfectly flawless under loupe at a “cheap” price is a red flag — probably CZ or moissanite.
Verdict: The only reliable at-home test is a dual-mode diamond tester ($40-$100 on Amazon). For verified purchases, buy from GIA-certified retailers like Blue Nile — every stone comes with lab certification. See our how to tell if a diamond is real guide.
Do Princess Cut Diamonds Sparkle? Light Performance Decoded
Yes — princess cut has 57-76 facets (brilliant-cut style), delivering strong brilliance and fire. It sparkles 85-90% as much as a round brilliant (which has 57-58 facets but optimized star/pavilion geometry).
| Shape | Brilliance (0-100 scale) | Fire (color flash) | Scintillation (sparkle pattern) |
|---|---|---|---|
| Round Brilliant | 100 (benchmark) | High | Even, maximum |
| Princess | 85-90 | Medium-high | Four-arm X pattern |
| Cushion | 80-85 | High | “Crushed ice” pattern |
| Radiant | 85-90 | Medium-high | Scattered flashes |
| Emerald | 50-60 | Low | Step-cut “hall of mirrors” |
| Asscher | 55-65 | Low | “Windmill” pattern |
Verdict: Princess cut sparkles well — it’s a brilliant-cut, not a step-cut. The characteristic “four-arm X” sparkle pattern is distinctive and recognizable. If maximum sparkle matters most, round still wins; princess is a strong second with the bonus of 25-30% lower price.
Mehedi’s Take: “The ‘princess doesn’t sparkle as much as round’ critique is overblown. Side-by-side on a jeweler’s bench, the difference is maybe 10-15% — most people can’t pick the right stone without a loupe. For 25-30% lower price, that’s a very reasonable trade. Save the money, buy a slightly bigger stone.” — Mehedi Hasan, Diamond Industry Veteran
Princess Cut Settings — 4-Prong, Compass, Kite, Side Stones
Setting choice matters more for princess cut than most shapes because of the sharp corners. The wrong setting leaves corners exposed to chipping — the single biggest princess cut buyer regret.
| Setting Style | Corner Protection | Best For | Our Verdict |
|---|---|---|---|
| 4-Prong V-Tip | Highest — prongs curve to protect each corner | Default for all princess cuts | Our #1 recommendation |
| Compass (North-South-East-West) | High — prongs align with corners | Modern aesthetic | Strong alternative to V-tip |
| Kite Setting (rotated 45°) | Medium — stone rotated into diamond shape | Non-traditional, geometric | OK with experienced jeweler |
| Bezel (full metal rim) | Highest — metal covers all edges | Daily-wear, active lifestyles | Hides sparkle but max protection |
| Half-Bezel | Medium — metal on two sides | Compromise between protection and visibility | Reasonable choice |
| Channel (set between metal walls) | Highest | Side stones, wedding bands | Perfect for accent princess cuts |
| 3-Prong | Low — one corner always exposed | Not recommended for princess | Skip — corner chip risk |
| Tension Setting | None — stone held by metal pressure only | Not recommended for princess | Skip — too risky for sharp corners |
Verdict: Always ask for 4-prong v-tip or compass setting on a princess cut. These setting styles are standard at Blue Nile’s princess cut engagement rings. Skip 3-prong, tension, and open-corner settings — the chip risk isn’t worth the aesthetic.
Princess Cut Diamond Price by Carat and Grade ([year] Prices)
Princess cut prices scale with carat, color, and clarity. The sweet spot for engagement rings: 1-1.5ct, G-H color, VS2-SI1 clarity. Here are current Blue Nile prices:
| Carat | Natural (D VVS2) | Natural (G VS2) | Lab-Grown (D VVS2) | Lab-Grown (G VS2) |
|---|---|---|---|---|
| 0.5ct | $1,800 | $1,200 | $450 | $300 |
| 1.0ct | $5,500 | $3,800 | $1,200 | $900 |
| 1.5ct | $9,500 | $6,500 | $2,000 | $1,400 |
| 2.0ct | $18,000 | $12,500 | $3,500 | $2,400 |
| 2.5ct | $26,000 | $18,000 | $5,200 | $3,600 |
| 3.0ct | $42,000 | $29,000 | $7,500 | $5,200 |
Verdict: Lab-grown princess cut is 70-80% cheaper than natural at identical spec. For 85% of buyers, 1ct G VS2 lab-grown ($900) at Blue Nile is the sweet spot — face-up colorless, eye-clean, and leaves budget for a quality setting. Use our diamond rate calculator for custom specs.
Where to Buy Princess Cut Diamond Rings — Blue Nile, Vrai, Jared, WithClarity
| Retailer | Princess Cut Inventory | Our Verdict | Best For |
|---|---|---|---|
| Blue Nile | Largest certified online inventory, 100,000+ lab + natural | Our #1 pick for princess cut | Shop Blue Nile princess cut |
| Vrai | Lab-grown only, direct-from-diamond-foundry pricing | Strong for lab princess cuts | Lab-focused buyers |
| Blue Nile (ex-James Allen) | Signet-integrated inventory, 360° video on every stone | Strong — browse ex-JA inventory | Visual-first buyers |
| Jared | Showroom + online, mall jeweler pricing | Average — 20-30% markup vs online specialists | Buyers who want in-person try-on |
| WithClarity | Lab-grown focused, GIA certified | Good — competitive pricing | Lab buyers seeking personalized service |
| Zales | Mall chain, limited certified inventory | Skip for princess cut — see our Zales vs Blue Nile comparison | Impulse mall shoppers only |
| Costco | Limited selection, GIA cert on most | OK for standard specs; limited customization | Members-only, bulk buyers |
| Local independent jeweler | Variable inventory, custom options | Case-by-case — verify GIA cert | Buyers who value relationship |
Verdict: For 85% of buyers, Blue Nile’s princess cut engagement rings are the right answer — largest certified inventory, 30-day return, free US shipping, lifetime warranty. Cross-shop Vrai for pure lab-grown, Jared for in-store experience.
Princess Cut Pros and Cons — Buyer Truth
| Pros | Cons |
|---|---|
| 25-30% cheaper than round at same spec | Sharp corners chip if setting doesn’t protect them |
| Modern, geometric aesthetic | Face-up size slightly smaller than round at same carat |
| Strong brilliance (85-90% of round) | Shows color more than round (buy G or better) |
| Hides inclusions well with crisp facets | Not as “trendy” as oval currently (if that matters) |
| Pairs well with all setting metals | Resale slightly lower than round (-5-10% retail) |
| Four-arm X sparkle pattern is distinctive | Not every jeweler stocks premium princess cuts |
Verdict: Princess cut pros outweigh cons for buyers who want maximum carat per dollar in a modern shape. The one real risk — corner chipping — is fully solved by choosing a 4-prong v-tip or compass setting. Everything else is minor.
Princess Cut Facets, Measurements, and 45-Degree Rotation
Technical specs for buyers who want to understand what they’re looking at:
- Facet count: 57 to 76 facets (varies by cutter preference and chevron count). Standard is 57 (crown 25, pavilion 32).
- Length-to-width ratio: 1.00-1.05 for a square princess. 1.10-1.20 for an elongated princess.
- Ideal table percentage: 65-72%
- Ideal depth percentage: 68-75%
- 45-degree rotation (kite setting): Rotating the princess 45° creates a diamond-shape silhouette. Pairs well with vintage settings but requires custom work.
- Chevron count: Modern princess cuts have 2-4 chevrons per quadrant (more chevrons = more “crushed ice” look, less distinct facet pattern).
Verdict: For maximum brilliance, pick a princess with 2 chevrons per quadrant and length-to-width ratio of 1.00-1.05. Request GIA certification showing table 65-72%, depth 68-75%. Avoid stones with less than 2 chevrons (dead center) or more than 4 (over-cut, loses pattern definition).
Princess Cut Decision Matrix — What to Buy for Your Budget
| Budget | Best Spec | Where to Buy | What This Means |
|---|---|---|---|
| Under $1,000 | 0.75-1ct lab-grown, G-H, VS2 | Blue Nile lab princess | Entry — looks like $4,000 natural, 70% cheaper |
| $1,000-$2,500 | 1-1.5ct lab-grown, G, VS1-VS2 | Blue Nile lab princess + 14k gold | Sweet spot engagement — complete ring at this budget |
| $2,500-$5,000 | 1ct natural G VS2 OR 2ct lab D VVS2 | Blue Nile princess | Natural vs lab tradeoff — resale (natural) vs size (lab) |
| $5,000-$10,000 | 1.5-2ct natural G VS2 | Blue Nile natural princess | Flagship natural — strong resale, lifetime appeal |
| $10,000-$20,000 | 2ct natural D VVS2 OR 2.5ct natural F VS1 | Blue Nile premium | Collector-tier — top specs, premium setting |
| $20,000+ | 3ct+ natural D VVS2 | Blue Nile Astor | Investment stone — add Jewelers Mutual insurance |
| Side stones / wedding band | Small princess cuts (0.1-0.3ct each) | Blue Nile wedding bands | Accent use — princess + baguette combos common |
Verdict: For 85% of first-time engagement ring buyers, 1-1.5ct lab-grown G VS2 princess at $900-$1,400 is the right answer. You get a stone that looks like $4,000-$6,500 natural at identical specs, with budget left for a quality 14k gold setting. See lab vs natural price calculator for your specific scenario.
Mehedi’s Take: “The question I get most on princess cut: ‘is natural worth 4x the lab price?’ For resale value yes; for daily-wear look identical. If you plan to upgrade in 10 years, buy natural. If this is your lifetime ring and resale doesn’t matter, buy lab and spend the saved $3,000 on a honeymoon or a down payment. The visual is indistinguishable.” — Mehedi Hasan, Diamond Industry Veteran
Frequently Asked Questions
What is a princess cut diamond?
A princess cut diamond is a square or slightly rectangular brilliant-cut stone with 57-76 facets. Officially called “square modified brilliant,” it combines the geometric look of a square with the sparkle of a round brilliant.
What does princess cut mean?
Princess cut refers to a specific diamond shape: square or near-square with pointed corners and 57-76 brilliant facets. The name was coined by Betazel Ambar and Israel Itzkowitz in 1980 to market the modified square brilliant cut.
What is a princess cut diamond ring?
A princess cut diamond ring features a princess-shaped (square brilliant) center diamond. Commonly used for engagement rings. See certified princess cut diamond rings at Blue Nile.
How much is a 1 carat princess cut diamond?
1 carat princess cut diamond: $3,800 natural G VS2, $5,500 natural D VVS2, $900 lab-grown G VS2, $1,200 lab-grown D VVS2. Lab-grown is 70-80% cheaper at identical spec.
How big is a 1 carat princess cut diamond?
5.5mm × 5.5mm per side. Face-up slightly smaller than a 1ct round brilliant (6.5mm diameter). For “looks biggest,” choose elongated princess (6.0 × 5.0mm) or go up to 1.25ct (6.0 × 6.0mm).
Are princess cut diamonds more expensive than round?
No — princess cut is 25-30% cheaper than round at the same carat, color, and clarity. Princess cuts retain more weight from the rough stone during cutting, which lowers the per-carat price.
Are princess cut diamonds out of style?
No. Princess cut is the #3 most popular engagement ring shape (13-17% market share, stable for a decade). Round brilliant is #1, oval is #2. Princess is a timeless mainstream pick, not a passing trend.
What’s the difference between princess cut and square cut?
“Square cut” is an informal term that can refer to princess cut, asscher cut, or square radiant cut. Princess is a brilliant-cut (high sparkle); asscher is step-cut (hall-of-mirrors look); square radiant is a hybrid. Princess cut is the most common “square” engagement diamond.
Princess cut vs cushion cut — which is better?
Princess has crisp 90-degree corners and brilliant-cut sparkle. Cushion has soft rounded corners and “crushed ice” sparkle pattern. Princess is modern/geometric; cushion is vintage/soft. Cushion costs ~5% less. Choose based on aesthetic preference, not price.
Princess cut vs emerald cut?
Princess is brilliant-cut (max sparkle). Emerald is step-cut (less sparkle but more “elegant” hall-of-mirrors effect). Emerald is 15% cheaper. If you want sparkle, choose princess. If you want sophisticated minimalism, choose emerald.
Princess cut vs radiant cut?
Both are brilliant-cut squares/rectangles with similar sparkle (85-90% of round). Princess has sharp 90° corners; radiant has beveled corners (safer from chipping). Radiant is 5% cheaper. Radiant is slightly better for daily wear due to corner safety.
Princess cut vs round brilliant?
Round brilliant has maximum sparkle (benchmark 100). Princess has 85-90% of round’s sparkle at 25-30% lower price. Round is a 6.5mm diameter at 1ct; princess is 5.5mm × 5.5mm (slightly smaller face-up). Round for max brilliance; princess for value.
What’s the best setting for a princess cut diamond?
4-prong v-tip setting is the industry standard — the v-tip prongs cup each sharp corner and prevent chipping. Compass setting (north-south-east-west prongs) is a modern alternative. Bezel settings offer maximum protection. Avoid 3-prong and tension settings.
What’s the ideal depth for a princess cut diamond?
Ideal depth percentage: 68-75%. Below 68% the stone looks shallow (loses brilliance). Above 75% the stone cuts deeper (weight hidden below girdle, looks smaller face-up). Ideal table: 65-72%.
Is princess cut diamond good quality?
Yes — princess cut has 85-90% of round’s sparkle, retains inclusions well (hides SI1 clarity better than round), and costs 25-30% less. For most buyers it’s the smartest brilliant-cut shape purchase.
Why are princess cut diamonds cheaper than round?
Cutting a princess cut from rough preserves 60-80% of the raw stone weight. Round brilliant retains only 40-60%. Less waste means lower per-carat cost. Princess cutters can produce more finished weight per rough stone than round cutters.
Do princess cut diamonds sparkle?
Yes — princess cut sparkles at 85-90% of round brilliant brilliance. It has 57-76 facets arranged in a brilliant-cut pattern. Characteristic “four-arm X” sparkle pattern distinguishes it from round’s circular scintillation.
How many facets does a princess cut diamond have?
57-76 facets, depending on chevron count. Standard: 57 facets (25 crown + 32 pavilion). Modern “chevron princess” cuts have up to 76 facets for more “crushed ice” look.
How to tell if a princess cut diamond is real?
Use a dual-mode thermal + electrical diamond tester ($40-$100). Real diamond passes both. Moissanite passes thermal but fails electrical. CZ fails both. Verify GIA/AGS certificate at the lab’s website. See full how to tell if a diamond is real guide.
Can you get a lab-grown princess cut diamond?
Yes — Blue Nile has 100,000+ lab-grown diamonds including princess cut in every size. Lab-grown is 70-80% cheaper than natural at identical specs with same visual appearance.
Where should I buy a princess cut diamond ring?
Blue Nile is our top pick — largest certified inventory, 30-day return, free US shipping, lifetime warranty. Cross-shop Vrai for lab-grown focus or Jared for in-store try-on. Skip mall chains like Zales/Kay for better value online.
What’s the best color grade for princess cut?
G color is the sweet spot. Princess cut shows color slightly more than round (deeper pavilion traps tint). D-F reads colorless; G-H reads near-colorless. Below I, warm tint shows. For yellow gold settings, F-G is fine. For white gold/platinum, prefer G or better.
What’s the best clarity grade for princess cut?
VS2 is the sweet spot. Princess cuts hide inclusions well due to crisp facets. SI1 can be eye-clean (buy with photos/video review). Don’t pay for VVS or FL unless resale matters — the visual difference is zero at normal viewing distance.
Are princess cut diamond rings good for engagement?
Yes — princess is the #3 most popular engagement ring shape. The combination of modern geometric aesthetic, strong brilliance, and 25-30% lower price than round makes it a smart choice. Just always use a 4-prong v-tip or compass setting to protect the sharp corners.
Do princess cut diamonds chip easily?
Only if the setting leaves corners exposed. Princess cut has four sharp 90° corners that can chip against hard surfaces. The 4-prong v-tip or compass setting fully protects corners. In protected settings, chip rate is near zero over decades of daily wear.
What’s an elongated princess cut?
An elongated princess has a length-to-width ratio of 1.10-1.20 (slightly rectangular). Standard square princess is 1.00-1.05. Elongated has larger face-up size per carat and flatters longer fingers. Harder to find — only ~15% of princess inventory.
See Also — Related Diamond Guides
- Complete Diamond Shapes Guide
- Diamond Cut Chart (Round, Princess, Oval, All Shapes)
- Diamond Carat Size Chart — MM Diameter by Shape
- Diamond Color & Clarity Chart Guide
- Diamond Rate Calculator
- Diamond Appraisal Calculator
- Diamond Resale Price Calculator
- Round Brilliant Cut Diamond Guide
- Cushion Cut Diamond Guide
- Emerald Cut Diamond Guide
- Asscher Cut Diamond Guide
- Marquise Cut Diamond Guide
- Oval Cut Diamond Guide
- Pear Shaped Diamond Ring Guide
- Radiant Cut Diamond Secrets
- Hearts and Arrows Diamonds Explained
- Triple Excellent Cut Explained
- How to Tell If a Diamond Is Real
- Blue Nile FAQs — Return, Warranty, Diamond Quality
- Blue Nile Reviews — Customer Experience Breakdown
- VRAI vs Blue Nile Comparison
- Zales vs Blue Nile Comparison
- James Allen vs Blue Nile (Both Signet-Owned)
- Best Places to Buy Engagement Rings Online
Final Verdict — Is a Princess Cut Diamond Right for You?
Yes — if you want 25-30% more carat for your dollar in a modern geometric shape. Princess cut combines strong brilliance (85-90% of round), timeless popularity (#3 most-chosen engagement shape), and the lowest cost-per-carat of all brilliant-cut diamonds. Our top pick: Blue Nile’s princess cut engagement ring collection.
No — if maximum brilliance matters more than price (choose round brilliant) or if you want current trending popularity (choose oval). Princess cut is a smart, timeless pick but not the Instagram-trendy choice right now.
Mehedi’s Final Take: “If I had $3,000 to spend on an engagement ring today, I’d buy a 1.25ct lab-grown princess cut G VS2 in a 4-prong v-tip 14k white gold setting. Total out-the-door: $2,200. Face-up it looks like a $12,000 natural diamond ring. The $9,800 you don’t spend is a down payment on a honeymoon or a car. That’s the smart math.” — Mehedi Hasan, Diamond Industry Veteran
