Ada Diamonds

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Oval Lab Diamonds of 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 oval lab diamonds are hand-selected for incredible make, minimal bow tie, and endless sparkle.

Explore custom oval lab diamond engagement rings


1.5 Carat Solitaire Engagement Ring

14k rose gold solitaire engagement ring featuring a 1.5 carat lab created oval diamond. See additional design details for this Oval Petite Four Prong Solitaire and U Pave Three Quarter Band.


2 Carat Diamond Band Engagement Ring

14k yellow gold custom diamond band engagement ring featuring a 2 carat lab grown oval diamond center stone. See additional design details for this Custom Diamond Band Ring.


2.5 Carat Solitaire Engagement Ring

18k yellow gold solitaire engagement ring featuring a 2.5 carat lab created oval diamond. See additional design details for this Oval East-West Solitaire.


3 Carat Halo Engagement Ring

Platinum halo engagement ring featuring a 3 carat lab created oval diamond center stone. See additional design details for this Double Sided Halo Ring.


3.5 Carat Three Stone Engagement Ring

Platinum three stone engagement ring featuring a 3.5 carat lab created oval diamond center stone and trapezoid side stones. See additional design details for this Oval and Trapezoid Ring.


4 Carat Solitaire Engagement Ring

Platinum solitaire engagement ring featuring a 4 carat lab created oval diamond center stone. See additional design details for this Oval Petite Four Prong Solitaire.


4.5 Carat Halo Engagement Ring

Platinum halo engagement ring featuring a 4.5 carat lab created oval diamond center stone. See additional design details for this Single Halo Split Shank Ring.


5 Carat Diamond Band Engagement Ring

Platinum diamond band engagement ring featuring a 5 carat lab created oval diamond center stone. See additional design details for this Oval Cathedral Pave Ring.


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