Engagement Rings
Anniversary Rings
Solitaire Rings
Halo Rings
Toi Moi Rings
Three Stone Rings
Nature Inspired Rings
Rose Cut Rings
Fancy Color Rings
Antique Cut Rings
Wedding Rings
Wedding Band Rings
Exclusive Lab Grown Diamond Rings
All Lab Grown Diamond Ring
Engagement Rings
Three Stone Rings
Fancy Color Rings
Antique Cut Rings
Daily Wear Rings
Wedding Band Rings
Exclusive Moissanite Rings
Earrings
Bracelet
Pendant
Necklace
Men's Ring
Bridal Sets
Rings
Earrings
Tennis chain
Cuban Chains
Custom Pendant
Custom Ring
Custom Teeth Grillz
Round
Oval
Cushion
Marquise
Pear
Emerald
Heart
Princess
Rose Cut
Radiant
Antique Cut
Brooch
Cufflink
Keychain
Unique Products
+91 9265051773
Virtual Appointment
log in
Quick answer: If you want the most visible size for your money, choose an oval, pear or marquise. These elongated shapes look larger face-up than a round of the same carat weight and usually cost less per carat. If sparkle is your top priority, a round brilliant is unmatched, but it is typically the most expensive shape. For a square look on a budget, cushion, radiant and princess cuts offer strong value.
Shape changes both the look and the price of a lab grown diamond. Here is how each popular shape compares, so you can match your style to your budget.
Why Shape Affects Price
A diamond is cut from a rough crystal, and some shapes waste more of that crystal than others. Round brilliants lose the most material during cutting, so they cost more per carat. Shapes that follow the crystal more closely, like princess and cushion, keep more weight and often cost less. Demand matters too: the most popular shapes can carry a premium.
Lab Grown Diamond Shapes Compared
| Shape | Price per carat | Looks larger? | Best for |
|---|---|---|---|
| Round | Highest | Standard | Maximum sparkle, classic style |
| Oval | Lower than round | Yes | Size and elegance |
| Pear | Lower than round | Yes | A unique, graceful look |
| Marquise | Lower than round | Yes, the most | Maximum finger coverage |
| Cushion | Good value | Similar | Soft, romantic square look |
| Radiant | Good value | Similar | Square or rectangle with sparkle |
| Princess | Often the lowest | Similar | Crisp, modern square |
| Emerald | Good value | Slightly | Clean, vintage elegance |
These are general patterns. Actual prices depend on each stone's grades and the market at the time you buy.
Best Shapes by Budget Goal
Biggest look for the money: oval, pear, marquise
Elongated shapes spread their weight across a larger surface, so a 1.5 carat oval can look close to a larger round. They also make fingers look longer and slimmer. Watch for a "bow tie," a dark shadow across the center, and choose a stone with a light, even look.
Most sparkle: round
Round brilliants are cut to return the most light. If sparkle matters most and you are happy with a slightly smaller stone for the same budget, round is the classic choice.
Best square value: princess, cushion, radiant
These shapes give a bold, geometric look for less than a round. Princess cuts have sharp corners, so choose a setting that protects them.
Step cut style: emerald
Emerald cuts show clarity more than brilliant cuts, so choose VS1 or better. In return, you get a calm, elegant look that feels vintage.
Shown: 1.01 Ct Oval Cut Fancy Yellow Lab Grown Diamond, VS1, IGI Certified
Tips for Choosing Your Shape
- Try shapes on. Photos help, but seeing the shape on your own hand is the best guide.
- Think about lifestyle. Pointed shapes like pear and marquise need prongs or V-tips to protect their tips.
- Match the setting. A halo makes any shape look larger; a solitaire shows the shape clearly.
- Check the length-to-width ratio. For ovals, around 1.35 to 1.50 is a popular range.
Find Your Shape at Ivevar
We cut, set and polish in our own Surat workshop and ship worldwide with free shipping and 30-day easy returns. Browse by shape: oval, round, pear, marquise, cushion, radiant, princess and emerald. For more detail, see our diamond shapes guide.
Shop Lab Grown Diamonds by Shape
1.01 Ct Oval, Fancy YellowShop Now
0.89 Ct Marquise, Vivid PinkShop Now
0.80 Ct Emerald, Intense BlueShop Now
1.00 Ct Radiant, Vivid BlueShop Now
1.50 Ct Princess, Vivid BlueShop Now
1.01 Ct Cushion, Fancy GreenShop Now
Swipe to see more → | View all loose lab grown diamonds
Frequently Asked Questions
What is the cheapest lab grown diamond shape?
Princess cuts are often among the lowest priced per carat, with cushion and radiant close behind. Prices vary by stone and grade.
Which lab diamond shape looks the biggest?
Marquise usually looks the largest for its weight, followed by pear and oval.
Is round worth the extra cost?
If you love maximum sparkle and a timeless look, yes. If size matters more, an oval may give you more for the same budget.
Do fancy shapes hide color better?
Brilliant-cut fancy shapes like radiant and cushion hide color fairly well, while step cuts like emerald show it a bit more.
The Bottom Line
There is no single best shape, only the best one for your style and budget. Choose oval, pear or marquise for size, round for sparkle, and princess, cushion or radiant for square-cut value.
Related Guides
- Diamond shapes guide: how to choose the right cut
- Oval engagement rings: the complete buying guide
- All about marquise cut diamonds
Author Bio
Aumsri Pradhan
Founder, Ivevar Luxury
Aumsri Pradhan is the founder of Ivevar Luxury, a Surat-based fine jewelry brand that designs and handcrafts lab grown diamond and moissanite jewelry in its own workshop. She leads the brand's design and customer experience, from engagement rings and bridal sets to custom pieces made to each client's story. Through the Ivevar blog, she shares practical guidance on lab grown diamonds, moissanite, diamond grading and ring design to help buyers choose with confidence.
