Engagement Rings

White Gold Cushion and Trapezoid Diamond Engagement Ring featuring Lab Diamonds (Main View)

Shown with 2ct in 18k White Gold

High Quality Lab Diamonds Cushion and Trapezoid Diamond Engagement Ring in White Gold (Main View)

Shown with 2ct in 18k White Gold

White Gold Cushion and Trapezoid Diamond Engagement Ring featuring Exceptional Quality Man Made Diamonds (Side View)

Shown with 2ct in 18k White Gold

Lab Diamonds Cushion and Trapezoid Diamond Engagement Ring in White Gold (Side View)

Shown with 2ct in 18k White Gold

Platinum Cushion and Trapezoid Setting featuring High Quality 3.0 Carat Lab Diamonds (Main View)

Shown with 3ct in Platinum

platinum 3 carat cushion cut and trapezoid lab diamond engagement ring ada diamonds design ad 475 macro

Shown with 3ct in Platinum

3.0 Carat Lab Grown Diamonds set in White Gold Cushion and Trapezoid Setting (Main View)

Shown with 3ct in 18k White Gold

1.75 Carat Lab Diamonds Cushion and Trapezoid Diamond Engagement Ring in Platinum (Main View)

Shown with 1.75ct in Platinum

White Gold Cushion and Trapezoid Setting featuring Exceptional Quality 3.0 Carat Diamonds (Main View)

Shown with 3ct in 18k White Gold

platinum 3 carat cushion cut lab diamond engagement ring with trapezoid side stones ada diamonds design ad 475 macro

Shown with 3ct in Platinum

platinum three stone lab diamond engagement ring with 2 carat cushion cut three tone and trapezoid lab diamond engagement ring ada diamonds design ad 475

Shown with 2ct in Platinum

platinum 2.5 carat cushion and trapezoid engagement ring with manmade diamonds ada diamonds design ad475

Shown with 2.5ct in Platinum

Shown with 2ct in Platinum

platinum 2 carat cushion and trapezoid three stone lab diamond engagement ring ada diamonds design ad 475 on model

Shown with 2ct in Platinum

white gold 3 carat cushion cut and trapezoid lab diamond ring ada diamonds design ad475 on model

Shown with 3ct in White Gold

platinum 3 carat cushion cut lab created diamond engagement ring with trapezoid side stones ada diamonds design ad 475

Shown with 3ct in Platinum

White Gold Cushion and Trapezoid Setting featuring 3.0 ctw Diamonds (Main View)

Shown with 3ct in 18k White Gold

cushion and trapezoid three stone lab diamond ring with prong set eternity band platinum ada diamonds design ad 475

Shown with 3ct in Platinum

wedding set with cushion and trapezoid 3 ct lab diamond engagement ring and cushion eternity band ada diamonds design ad 475 and ad 271

Shown with 3ct in Platinum

lab grown diamond wedding set with 3ct cushion cut and trapezoid three stone engagement ring and cushion eternity band ada diamonds design ad 475 and ad 271

Shown with 3ct in Platinum

Platinum Cushion and Trapezoid Setting featuring 3.0 ct Lab Diamonds (Main View)

Shown with 3ct in Platinum

platinum 3 carat cushion cut laboratory grown diamond ring with trapezoid side stones and cushion cut eternity wedding band ada diamonds design ad 475 and ad271

Shown with 3ct in Platinum

platinum 3.5 carat cushion cut and trapezoid three stone lab diamond engagement ring ada diamonds design ad 475

Shown with 3ct in Platinum

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Three Stones

Cushion and Trapezoid Setting

Starting at $2,450 (Setting Only)

A modern three stone engagement ring setting, featuring a pair of brilliant cut trapezoid lab grown diamond side stones in a basket or trellis style.

Three Stones

Starting at $2,450 (Setting Only)

A modern three stone engagement ring setting, featuring a pair of brilliant cut trapezoid lab grown diamond side stones in a basket or trellis style.

Selection Options

Ships in 3-4 Weeks

The Ada Diamonds Difference

Personal Concierge

Your own jeweler to guide you from the first question to the finished piece.

Made to Order in NYC

Individually crafted in our New York Flagship.

Lifetime Trade-Ins

We believe in every diamond we choose, and we’ll take it back, forever.

30-Day Returns

Peace of mind, built in.

Personal Concierge

Your own jeweler to guide you from the first question to the finished piece.

Made to Order in NYC

Individually crafted in our New York Flagship.

Lifetime Trade-Ins

We believe in every diamond we choose, and we’ll take it back, forever.

30-Day Returns

Peace of mind, built in.

Reviews

“Ada Diamonds lives up to its reputation of only providing high quality lab grown diamonds. The diamond that I ended up choosing was perfect! The ring is also top-notched for the design and craftsmanship. My fiance and I could not be happier with the finished product!”

— Chanh P.

“Ada Diamonds turned a complicated purchase into the simplest process, and they are worth every penny. My aunt used to be in the jeweler business and this ring got her seal of approval for quality craftsmanship. Love it!”

— Erin V.

“Incredible experience working with Ada Diamonds. Fantastic client service, from the initial video consultation to the constant responsiveness. In addition to the service, the ring is absolutely beautiful. I can't recommend Ada enough.”

— Ian H.

“I couldn't be happier with my overall exceptional experience I had with Ada Diamonds. I really appreciate the quality craftsmanship of the ring itself, and the conflict-free, ethical diamonds.”

— Mark C.

“We had a fantastic experience with Ada! My Concierge was so helpful in finding the perfect engagement ring for us. I would absolutely recommend Ada to anyone!”

— Matt E.

“The ring was perfect. It looks just a great as anything you'd buy at Tiffany's with the piece of mind about its origins. I'd highly recommend Ada to anyone looking.”

— Josh R.

“I recently bought my fiancee's ring at Ada and it was an awesome experience. I highly recommend visiting Ada and checking out what they have to offer!”

— Colin J.

“Ada was friendly, respectful and so encouraging. I cannot speak highly enough to their customer experience, and most importantly, the quality of their diamonds and rings! Their warranty speaks for itself.”

— Taylor G.

“If you're looking for high quality lab grown diamonds, work with Ada, they will make sure you get what you want, you'll have full control over customization of your ring, and they only sell amazing diamonds!”

— Paul P.

“The ring came out absolutely stunning and was exactly what my fiancé wanted per the specs she had provided. I would highly highly recommend Ada diamonds to anybody.”

— Evan G.

“Ada Diamonds lives up to its reputation of only providing high quality lab grown diamonds. The diamond that I ended up choosing was perfect! The ring is also top-notched for the design and craftsmanship. My fiance and I could not be happier with the finished product!”

— Chanh P.