4 carat round brilliant lab diamond solitaire engagement ring ada diamonds San Francisco, ca

4 Carat Lab Diamond Engagement Rings

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. Here are some gorgeous 4 carat lab created diamond engagement rings we have created for past clients.



four carat round pavé lab diamond engagement ring ada diamonds ad-149
four carat round lab diamond engagement ring platinum ada diamonds ad-149

4 Carat Round Petite Pavé Engagement Ring

14k yellow gold pavé engagement ring featuring a 4 carat round lab grown diamond center stone. See additional design details!



4ct radiant lab diamond with trapezoids in yellow gold
yellow gold lab diamond three stone ring

4 Carat Radiant and Trapezoid Three Stone Engagement Ring

14k yellow gold three stone engagement ring featuring a 4 carat radiant cut lab diamond center stone and brilliant cut trapezoid lab diamond side stones. See additional design details!



four carat oval in solitaire setting
lab diamond solitaire ring in platinum with 4ct center stone

4 Carat Oval Solitaire Engagement Ring

Platinum solitaire engagement ring featuring a 4 carat oval lab grown diamond center stone. See additional design details!



4ct emerald lab diamond in pave setting
lab created emerald cut pave engagement ring in yellow gold

4 Carat Emerald Pavé Engagement Ring

14k yellow gold diamond band engagement ring featuring a 4 carat emerald cut lab grown diamond. See additional design details!



4ct asscher cut lab diamond in cathedral solitaire
lab diamond solitaire with 4ct asscher

4 Carat Asscher Cut Solitaire Engagement Ring

Platinum solitaire engagement ring featuring a 4 carat asscher cut lab grown diamond. See additional design details!



4ct pear in halo three stone setting
halo three stone elaborate engagement ring

4 Carat Pear Brilliant Halo Engagement Ring

Platinum custom halo three stone engagement ring featuring a 4 carat pear and baguettes.



4ct oval in pave setting

Shop Engagement Rings

You dream it, we’ll bring it to life with lab grown diamonds curated for extraordinary quality.

4ct lab diamond solitaire

About Lab Diamonds

Learn how lab diamonds are grown, how they are priced relative to mined diamonds, and more.

San Francisco loose lab grown diamonds for sale ada diamonds

Shop Fine Jewelry

Our curated fine jewelry collections feature expert-curated lab diamonds.