Three Carat Round Lab Grown Diamond Engagement Rings

Looking to rock a 3 carat round lab created diamond? Here are four different styles to set a 3ct round brilliant lab diamond in a one-of-a-kind custom engagement ring from Ada Diamonds.


3 Carat Round Solitaire Engagement Ring

18k yellow gold split shank solitaire engagement ring featuring a 3 carat round lab grown diamond center stone. See additional design details!


3 Carat Round Solitaire Engagement Ring

Platinum solitaire engagement ring featuring a 3 carat round lab diamond center stone. See additional design details!


3 Carat Round Diamond Band Engagement Ring

Platinum diamond band engagement ring featuring a 3 carat round lab diamond center stone. See additional design details!


3 Carat Round Three Stone Engagement Ring

14k yellow gold three stone engagement ring featuring a 3 carat round lab diamond center stone. See additional design details!


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Ada Diamonds is the leading luxury purveyor of lab grown diamonds. Build something beautiful with the best lab diamonds on earth.

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Unmatched quality, unrivaled expertise. Learn why Ada is the only place to purchase a high quality lab diamond.

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Shop fine jewelry for any occasion made with stunning conflict-free laboratory grown diamonds.