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.

1.5ct round lab diamond with pear side stones in rose gold

lab diamond three stone ring in rose gold

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.

lab created 2ct round brilliant lab diamond

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.

round lab diamond engagement ring in halo 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.

3ct round lab diamond six prong solitaire

platinum 3ct round six prong solitaire lab grown

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.

3.5ct round lab diamond in three stone setting with trapezoids

lab created custom three stone halo setting

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.

lab created round diamond in cathedral pave 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.

lab diamond solitaire engagement ring with 5ct

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 round lab diamond engagement ring

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

	Colorless			Near Colorless
	D	E	F	G	H I J
IF	Premium $4,950 to $5,800		Standard $3,150 to $3,950
VVS1
VVS2
VS1
VS2
SI	Unexceptional 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.