Three Stone Settings


Shop More Engagement Ring Styles


Let your love shine bright with a breathtaking trio of lab grown diamonds.

A symbol of past, present and future, three stone rings are a popular way for couples to show their commitment. This stunning style maximizes sparkle and works with most diamond shapes. Show off your style with unique shapes or accents for a ring you'll love for a lifetime. 

At Ada Diamonds, we know your love is is one of a kind and we believe your ring should be too.

Marquise Three Stone Halo Ring.jpg

Proposal Settings

The purchase of diamond engagement ring is likely one of the most time-intensive and difficult purchases you'll ever make. It can be a challenge to know exactly what your loved one wants without ruining the surprise of an engagement.  

We will gladly set a diamond that you purchase from Ada into a temporary proposal setting so that you can surprise your loved one with a ready-to-wear solitaire engagement ring with the intent to build your dream ring together. The cost of the proposal setting can be applied in full to a new setting. Simply send back your ring for re-setting after finalizing your new design with our friendly concierge.

Proposal1.jpg

Grown From Love

Ada Diamonds cultures diamonds from donor carbon, provided by you. We can process and purify any carbon-containing items — flowers from your wedding, graduation keepsakes, excess materials from a house remodel — into pure diamond, making for the ultimate in meaningful, custom jewelry. We would love to celebrate your finest moments and memories with a commissioned diamond.

Ada also offers something truly extraordinary as part of our Lavoisier Process: you can commission the cutting of two diamond gemstones from a single rough diamond. Ada will take these two bespoke diamonds, cut from the same cloth, and make complementary rings for you and your loved one that are forever be linked: separate rings but the same diamond.

Flowers in Crucible.JPG