Lab Grown Diamond Shapes: Complete Guide to Choosing the Right Cut
Table of Contents
- 1. Why Diamond Shape Is the Most Important Decision You Will Make
- 2. What Is a Diamond Shape?
- 3. Round Cut Lab Grown Diamond
- 4. Oval Cut Lab Grown Diamond
- 5. Princess Cut Lab Grown Diamond
- 6. Cushion Cut Lab Grown Diamond
- 7. Emerald Cut Lab Grown Diamond
- 8. Pear Shape Lab Grown Diamond
- 9. Marquise Cut Lab Grown Diamond
- 10. Heart Cut Lab Grown Diamond
- 11. Asscher Cut Lab Grown Diamond
- 12. Portuguese Cut Lab Grown Diamond
- 13. Lab Grown Diamond Shapes Comparison Table
- 14. Lab Grown Diamond Shape Price Comparison
- 15. How to Choose the Right Lab Grown Diamond Shape
- 16. Trending Lab Grown Diamond Shapes in 2026
- 17. Lab Grown vs. Natural Diamond
- 18. Final Thoughts
- 19. Frequently Asked Questions
Why Diamond Shape Is the Most Important Decision You Will Make
When you decide to buy a lab grown diamond, one question comes up before everything else — which shape should I choose?
Lab grown diamonds are real diamonds. They share the same chemical composition, physical hardness, and optical brilliance as mined diamonds — but they are created using advanced technology in controlled environments. At Cheriva Jewels, we focus on offering carefully selected lab grown diamonds that match both modern design preferences and high-quality standards.
In 2026, more than 60% of couples choosing engagement rings are opting for lab grown diamonds, largely because they deliver better size, better quality, and better value for the same budget. Many buyers today are also choosing brands like Cheriva Jewels for their transparency, customization options, and premium craftsmanship.
But with so many lab grown diamond shapes available, choosing the right one can feel overwhelming.
The shape of your diamond determines:
- How large it appears on the finger
- How it interacts with light
- Which ring settings work best
- How comfortable it is for daily wear
- And how much you pay for it
This guide covers all major lab grown diamond shapes and helps you choose the right one based on your style, budget, and purpose.
What Is a Diamond Shape?
Before diving into the shapes themselves, it is important to understand one thing that confuses most buyers.
Diamond shape refers to the outer outline of the stone as seen from above — for example, round, oval, square, or teardrop. It defines the silhouette of the diamond.
Diamond cut refers to how the stone has been faceted and polished — how deep it is, how symmetrical, and how well light enters and reflects back to the eye.
In simple terms:
Cut = how well it performs
A diamond can have a beautiful shape but a poor cut — and it will look dull. This is why both matter. A well-cut lab grown oval diamond, for example, will look significantly more brilliant than a poorly cut one of the same carat weight.
When shopping for lab grown diamond shapes, always check the cut grade alongside the shape. Aim for Excellent or Very Good cut grades for the best light performance.
1. Round Cut Lab Grown Diamond — The Classic Choice
The round brilliant cut is the most popular lab grown diamond shape in the world, and for good reason. It is engineered with 58 precisely arranged facets that maximize light return, creating the signature brightness and fire most people associate with diamonds.
Because of its circular outline, the round cut has no vulnerable pointed corners, making it one of the most durable shapes for daily wear. Lab grown manufacturing allows for precise facet alignment that further enhances its optical performance.
Light Performance: Excellent — highest of all shapes
Price Level: High (10–20% premium over fancy shapes)
Finger Appearance: Medium — looks proportionate on most hand sizes
Durability: Excellent — no sharp corners to chip
Best For: Engagement rings, stud earrings, pendants, tennis bracelets
Ideal Settings: Solitaire, four-prong, halo, bezel
Expert Tip: If you want maximum brilliance and a timeless look that never goes out of style, the round cut lab grown diamond is your safest, most versatile choice. Budget-conscious buyers can get the same look in a lab grown stone at a fraction of the cost of mined diamonds.
2. Oval Cut Lab Grown Diamond — The Most Trending Shape in 2026
The oval cut lab grown diamond is currently the most popular fancy shape, especially for engagement rings. It uses a brilliant facet arrangement similar to round cuts, delivering strong sparkle while offering a visually elongated and modern appearance.
The key advantage of oval lab grown diamonds is that they appear significantly larger than round diamonds of the same carat weight. Their elongated form also creates a flattering lengthening effect on the finger.
One factor to watch for: some oval cuts show a "bow-tie shadow" across the center. Well-cut lab grown oval diamonds minimize this through proper symmetry — always view the stone in person or via HD video before purchasing.
Light Performance: High — very close to round
Price Level: Medium — typically 15–25% more affordable than round
Finger Appearance: Large — one of the best shapes for looking bigger
Durability: Good — no sharp corners, slight vulnerability at tips
Best For: Engagement rings, statement rings, pendants
Ideal Settings: Solitaire, hidden halo, elongated prong, east-west setting
Expert Tip: In 2026, oval lab grown diamonds are the top choice for modern engagement rings. They offer a bigger look, a flattering shape, and a lower price than rounds — making them the best value for most buyers.
3. Princess Cut Lab Grown Diamond — Modern & Sharp
The princess cut is the most popular square-shaped lab grown diamond. It features a brilliant-style facet arrangement that allows strong light performance while maintaining clean, geometric lines. Its contemporary look appeals strongly to buyers who prefer modern jewelry designs.
Princess cuts are often more affordable than round diamonds despite offering similar brilliance. However, the pointed corners are a potential weak point and need proper prong protection in the setting.
Light Performance: Medium-High
Price Level: Medium — often 20–30% less than round
Finger Appearance: Medium — balanced appearance on most fingers
Durability: Moderate — pointed corners need protected prong settings
Best For: Modern engagement rings, contemporary fine jewelry
Ideal Settings: Four-prong corner setting, channel setting, square halo
Expert Tip: If you love the sparkle of a round diamond but prefer a bold, angular look, the princess cut lab grown diamond is an excellent alternative at a noticeably lower price.
4. Cushion Cut Lab Grown Diamond — Classic with Modern Appeal
The cushion cut combines a square or rectangular shape with softly rounded corners, giving it a pillow-like appearance. It has been a beloved diamond shape for centuries and continues to rank among the best-selling lab grown diamond shapes in 2026.
Cushion cuts come in two main styles — the "chunky" cushion with fewer, broader facets, and the "crushed ice" cushion with smaller, scattered facets that create a shimmery effect. Each creates a distinctly different look.
Light Performance: Medium — softer, warmer look than brilliant cuts
Price Level: Medium — generally 20–35% less than round
Finger Appearance: Medium — wide appearance suits most finger lengths
Durability: Very Good — rounded corners make it less prone to chipping
Best For: Engagement rings, vintage-style jewelry, halo designs
Ideal Settings: Halo, cushion halo, vintage-inspired prong, bezel
Expert Tip: The cushion cut lab grown diamond is ideal for buyers who want a classic, romantic look with a modern twist. The softer edges make it very comfortable for daily wear.
5. Emerald Cut Lab Grown Diamond — The Sophisticated Statement
The emerald cut is a rectangular step-cut diamond that prioritizes elegance over brilliance. Its long, parallel facets create a "hall of mirrors" effect — a deep, sophisticated flash of light rather than intense sparkle.
Because the large open facets reveal the interior of the stone clearly, clarity is more important in emerald cut lab grown diamonds than in most other shapes. Aim for VS2 clarity or above to ensure a clean appearance.
Light Performance: Low-Medium — focused flashes, not scattered sparkle
Price Level: Medium — often priced similarly to cushion cuts
Finger Appearance: Medium-Large — elongated shape flatters the finger
Durability: Good — step-cut corners are less vulnerable than brilliant cuts
Best For: Elegant rings, formal jewelry, minimalist designs
Ideal Settings: Solitaire, bezel, three-stone settings
Expert Tip: The emerald cut lab grown diamond is perfect for buyers who want a clean, understated look that turns heads through elegance rather than flash. Pair with a high clarity grade for best results.
6. Pear Shape Lab Grown Diamond — Unique & Elongating
The pear shaped lab grown diamond — also called a teardrop diamond — combines elements of the round brilliant and marquise shapes. It has a rounded base that tapers to a pointed tip, creating an instantly recognizable and distinctive silhouette.
Pear shapes are excellent for creating a longer, slimmer appearance on the finger. They also tend to appear larger than round diamonds of the same carat weight. Proportion matters greatly — the ideal pear diamond has a length-to-width ratio between 1.45 and 1.75.
Light Performance: Medium-High
Price Level: Medium — typically 20–30% less than round
Finger Appearance: Very Large — one of the most elongating shapes
Durability: Moderate — the pointed tip needs protective prong setting
Best For: Engagement rings, drop earrings, pendants
Ideal Settings: Prong with tip protection, halo, east-west setting, drop setting
Expert Tip: Pear shaped lab grown diamonds are growing fast in popularity in 2026 due to their flattering appearance and unique design. They are a strong choice for buyers who want something different from the classic round or oval.
7. Marquise Cut Lab Grown Diamond — Maximum Size Per Carat
The marquise cut features an elongated shape with pointed ends on both sides. It has the largest surface area of any diamond shape relative to carat weight — meaning a 1-carat marquise will look noticeably larger than a 1-carat round on the finger.
This makes the marquise cut lab grown diamond one of the smartest choices for buyers who want maximum visual impact without increasing their budget.
Light Performance: Medium — good sparkle from the wide surface area
Price Level: Medium — generally more affordable than round
Finger Appearance: Very Large — covers the most finger space of any shape
Durability: Moderate — both pointed ends require protective settings
Best For: Statement rings, vintage-inspired designs, bold jewelry
Ideal Settings: Six-prong, V-tip prong, elongated halo
Expert Tip: If you want the biggest looking diamond for the smallest price, the marquise cut lab grown diamond offers the best visual size-to-cost ratio of any shape.
8. Heart Cut Lab Grown Diamond — Meaningful & Symbolic
The heart cut is essentially a modified round brilliant that has been carefully shaped into two rounded lobes with a pointed tip. It requires high precision during cutting — the left and right sides must be perfectly symmetrical to look balanced.
Lab grown heart diamonds benefit from the precision of controlled manufacturing, which makes it easier to achieve consistent symmetry compared to mined diamonds.
Light Performance: Medium-High — similar to round brilliant
Price Level: Medium-High — precision cutting adds cost
Finger Appearance: Medium
Durability: Moderate — pointed tip needs protective setting
Best For: Pendants, gift jewelry, romantic engagement rings
Ideal Settings: Prong with tip protection, halo, solitaire
Expert Tip: Heart cut lab grown diamonds make a deeply personal and meaningful jewelry choice. Always prioritize symmetry when selecting — the two lobes should be even, and the cleft at the top should be clearly defined.
9. Asscher Cut Lab Grown Diamond — Vintage Geometry
The Asscher cut is a square step-cut diamond with cropped corners and concentric square facets that create a dramatic "windmill" or "hall of mirrors" effect when you look into the stone. It is often associated with Art Deco jewelry and vintage aesthetics.
Like emerald cuts, Asscher cut lab grown diamonds have open facets that make clarity more visible. Higher clarity grades (VS1 or above) are recommended.
Light Performance: Low-Medium — geometric flash rather than sparkle
Price Level: Medium
Finger Appearance: Medium — balanced square shape
Durability: Very Good — cropped corners are more protected than pointed shapes
Best For: Vintage-style rings, Art Deco designs, structured jewelry
Ideal Settings: Solitaire, double halo, geometric bezel setting
Expert Tip: The Asscher cut lab grown diamond is ideal for buyers who love vintage and Art Deco aesthetics and want a shape that feels truly distinctive. Pair with a high clarity grade and a geometric setting for the best result.
10. Portuguese Cut Lab Grown Diamond — The Collector's Choice
The Portuguese cut is one of the rarest and most intricate lab grown diamond shapes available. It features multiple rows of triangular and kite-shaped facets that far exceed the facet count of standard brilliant cuts — often 160+ facets compared to 58 in a round brilliant.
This complex facet arrangement creates an exceptionally detailed and layered light performance that is unlike any other shape. Due to the difficulty and precision of the cutting process, lab grown diamonds are particularly well-suited for Portuguese cuts.
| Shape | Light Performance | Price vs Round | Visual Size | Best For |
|---|---|---|---|---|
| Round | ★★★★★ | Base price | Medium | All jewelry |
| Oval | ★★★★☆ | 15–25% less | Large | Engagement rings |
| Princess | ★★★★☆ | 20–30% less | Medium | Modern rings |
| Cushion | ★★★☆☆ | 20–35% less | Medium | Classic designs |
| Emerald | ★★☆☆☆ | 25–35% less | Medium-Large | Elegant styles |
| Pear | ★★★★☆ | 20–30% less | Very Large | Unique rings |
| Marquise | ★★★☆☆ | 20–30% less | Largest | Statement pieces |
| Heart | ★★★★☆ | 15–25% less | Medium | Gift jewelry |
| Asscher | ★★☆☆☆ | 25–35% less | Medium | Vintage designs |
| Portuguese | ★★★★★ | Similar to round | Medium | Collector pieces |
Lab Grown Diamond Shape Price Comparison: What Actually Drives the Cost
Many buyers focus only on carat weight when thinking about diamond pricing. But the shape you choose can have an equally significant impact on what you pay.
Why Round Diamonds Cost More
Round brilliant cut lab grown diamonds are the most expensive shape for two main reasons. First, more rough diamond material is lost during the cutting process to achieve the round outline — sometimes 50% or more of the original stone. Second, round diamonds have consistently higher demand, which supports a premium price.
Fancy Shapes Offer Better Value
Every other shape — oval, cushion, pear, marquise, princess, emerald, heart, Asscher — is classified as a "fancy shape." Fancy shape lab grown diamonds use more of the rough stone during cutting and generally carry lower price premiums.
Best value-for-money lab grown diamond shapes:
Cushion: Romantic and full look, priced 20–35% less than round
Marquise: Largest visual appearance per carat, strong value
Emerald & Asscher: Sophisticated step-cut look at a lower price point
Budget Buying Strategy
If you are working within a fixed budget, choosing a fancy shape allows you to either save money or significantly upgrade your carat weight. For example, the same budget that buys a 1.00ct round lab grown diamond could get you a 1.25ct–1.50ct oval lab grown diamond with similar or better visual impact.
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How to Choose the Right Lab Grown Diamond Shape: Step-by-Step
Step 1 — Consider Your Finger and Hand Shape
The shape of your diamond interacts with your natural finger shape. Choosing the right pairing makes a noticeable difference in how the ring looks when worn.
Short fingers: Choose elongated shapes — oval, pear, or marquise. These create a lengthening visual effect and make fingers appear longer and more slender.
Long fingers: Round, cushion, and princess cuts work well. They add visual width and create a balanced look on longer hands.
Wide fingers: Elongated shapes like oval and marquise are more flattering. Avoid shapes that appear too square or wide.
Slim fingers: Almost any shape works, but heart and round cuts look particularly elegant.
Step 2 — Match Your Personal Style
Classic and timeless: Round or cushion cut lab grown diamonds
Modern and minimal: Oval or emerald cut lab grown diamonds
Bold and unique: Marquise, pear, or heart cut lab grown diamonds
Vintage and romantic: Cushion, Asscher, or emerald cut lab grown diamonds
Step 3 — Think About Occasion and Use
Engagement rings: Round, oval, and cushion are the most versatile — they work with virtually any setting style and remain relevant across trend cycles.
Daily wear jewelry: Cushion, round, and princess cuts are practical for everyday use — comfortable, durable, and easy to maintain.
Special occasion and statement jewelry: Marquise, pear, and heart shapes make stronger visual statements and are well-suited for pieces worn occasionally.
Pendants and earrings: Pear shapes excel as drop pendants and earrings. Round and oval work beautifully as studs.
Step 4 — Set Your Budget and Choose Smartly
Maximize brilliance: Choose round or Portuguese cut
Maximize style impact: Choose emerald, Asscher, or heart for a distinctive look
Best all-round value: Oval lab grown diamonds offer the strongest combination of size, sparkle, and price in 2026
✨ Get Expert Help Choosing Your Diamond Shape
Trending Lab Grown Diamond Shapes in 2026
Oval
Oval cut lab grown diamonds are the single most popular fancy shape in 2026, particularly for engagement rings. Their flattering elongated appearance, larger visual size, and compatibility with modern ring settings have made them the go-to choice for couples who want something fresh but still timeless.
Pear
Pear shaped lab grown diamonds are one of the fastest-growing trends in 2026. Their unique teardrop silhouette appears frequently in proposal content on Instagram and Pinterest — and because they look larger than rounds at the same carat weight, they are a natural fit for buyers who want maximum visual impact.
Cushion
The cushion cut has maintained steady popularity because it blends vintage warmth with modern versatility. It works equally well in classic halo settings and contemporary solitaire designs, making it one of the most adaptable lab grown diamond shapes available.
Close-up ring photos and proposal videos on Instagram and Pinterest have made visual size and unique shapes significantly more important to modern buyers. Shapes that photograph beautifully — particularly oval, pear, and marquise — are benefiting from this shift. Many buyers now evaluate diamonds based on how they will look in photos, not just in person.
Lab Grown vs. Natural Diamond: Does Shape Make a Difference?
When it comes to diamond shape, there is no difference between lab grown and natural diamonds.
Both are cut and polished using the same equipment and the same cutting standards. The same shapes — round, oval, cushion, princess, emerald, pear, marquise, heart, Asscher, and Portuguese — are available in both lab grown and natural diamonds.
The key differences between lab grown and natural diamonds are:
Origin: Lab grown diamonds are created in controlled environments; mined diamonds come from the earth
Availability: Lab grown diamonds are available in all the same shapes and can often be grown to specific size requirements
Shape is determined entirely by how the diamond is cut — not where it comes from. So whether you choose a lab grown oval or a natural oval, the shape, proportions, and visual appearance will be identical at equivalent cut grades.
Ready to choose your perfect diamond?
💎 Shop Lab Grown Diamonds 📖 Learn About Diamond Cuts & MeaningFinal Thoughts: Choosing the Right Lab Grown Diamond Shape in 2026
The best lab grown diamond shape is the one that fits your hand, your style, and your budget — not necessarily the most popular or the most expensive.
To summarize the key points:
For the trendiest choice in 2026: Oval cut
For the biggest look on a budget: Marquise or pear
For a classic, romantic feel: Cushion cut
For sophisticated elegance: Emerald or Asscher cut
For something truly unique: Heart or Portuguese cut
Lab grown diamonds give you access to all of these shapes at a fraction of the cost of mined diamonds — without compromising on beauty, quality, or certification. At Cheriva Jewels, you can explore a wide range of expertly crafted designs, whether you’re shopping for an engagement ring, a pendant, or a pair of earrings. Choosing the right shape remains the most personal decision you’ll make in the buying process.
Take your time, compare your options, and choose the shape that truly feels right to you.
