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Round Brilliant Lab Grown Diamonds in Various Sizes

Round Brilliant Lab Grown Diamonds in Various Sizes

Ada Diamonds specializes in large, sensational lab diamonds of the highest quality. Every ring is custom and made to order by award-winning artists in the USA. Our round lab diamonds are hand-selected for clean arrows, scintillation, and brilliance.


1.5 Carat Three Stone Engagement Ring

14k rose gold three stone engagement ring, featuring a 1.5 carat round brilliant lab diamond center stone and pear side stones. See additional design details for the Round and Pear Setting.


2 Carat Three Stone Engagement Ring

Platinum three stone engagement ring, featuring a 2 carat round brilliant lab diamond center stone and triangular brilliant side stones. See additional design details for the Round and Trillion Setting.


2.5 Carat Halo Engagement Ring

Platinum halo engagement ring, featuring a 2.5 carat round brilliant lab diamond. See additional design details for the Round Halo Pave Setting.


3 Carat Solitaire Engagement Ring

Platinum solitaire engagement ring, featuring a 3 carat round brilliant lab grown diamond. See additional design details for the Round Classic Six Prong Solitaire.


3.5 Carat Three Stone Engagement Ring

Platinum custom three stone halo engagement ring, featuring a 3.5 carat round brilliant lab grown diamond. See additional details for a Custom Three Stone setting.


4 Carat Diamond Band Engagement Ring

Platinum diamond band engagement ring featuring a 4 carat round lab grown diamond center stone. See additional details for the Round Cathedral Pave Setting.


5 Carat Solitaire Engagement Ring

Platinum solitaire engagement ring featuring a 5 carat round brilliant lab grown diamond. See additional details for the Round Classic Four Prong Solitaire.


6 Carat Diamond Band Engagement Ring

Platinum diamond band engagement ring, featuring a 6 carat round brilliant lab diamond. See additional design details for the Round Petite Pave Setting.


Ada Diamonds is the Leading Luxury Purveyor of Lab Diamonds

Ada Diamonds specializes in large, sensational diamonds of superlative quality. Our diamonds are cut from the highest purity diamond crystals, have optimal cut and sparkle, and are always eye clean. Much like mined diamonds, lab diamonds are priced based on their quality characteristics. Use the tool below to understand our pricing:

Select Your Carat Weight

ColorlessNear Colorless
DEFGH I
IFPremium
$3,950 to
$4,950		Standard
$2,500 to
$3,150
VVS1
VVS2
VS1
VS2
SIUnexceptional
Not sold by Ada Diamonds
I

Pricing in USD. Subject to availability.

View 2 CARAT Diamond Engagement Rings

This chart shows a range of approximate prices across various size and quality levels and should serve as a rough guideline, not an exact calculator. Lab diamonds are unique SKU’s whose individual prices may be influenced by attributes beyond the 4 C’s. Prices are subject to change.

Ready to create your own custom round lab diamond engagement ring?