Engagement Rings

Lab Diamonds set in White Gold Cushion Cathedral Pavé Diamond Engagement Ring (Main View)

Shown with 2ct in 18k White Gold

High Quality Man Made Diamonds set in White Gold Cushion Cathedral Pavé Setting (Main View)

Shown with 2ct in 18k White Gold

Lab Diamonds set in White Gold Cushion Cathedral Pavé Setting (Side View)

Shown with 2ct in 18k White Gold

Hand Selected Man Made Diamonds Cushion Cathedral Pavé Setting in White Gold (Side View)

Shown with 2ct in 18k White Gold

3.25 Carat Lab Diamonds Cushion Cathedral Pavé Setting in Platinum (Main View)

Shown with 3.25ct in Platinum

Platinum Cushion Cathedral Pavé Setting featuring 2.75 ctw Man Made Diamonds

Shown with 2.75ct in Platinum

Cushion Cathedral Pavé Diamond Engagement Ring showcasing an elongated cushion cut in a pavé setting, AD-357

Shown with 2.25ct in Platinum

Shown with 2.5ct in 14k White Gold

Platinum 3 Carat Cushion Cathedral Pavé Ring made with Lab Diamonds Ada Diamonds Design AD-357 Artistic

Shown with 2.25ct in Platinum

Shown with 2.25ct in Platinum

1.75 Carat Lab Diamonds set in Platinum Cushion Cathedral Pavé Diamond Engagement Ring (Main View)

Shown with 1.75ct in Platinum

Shown with 2.25ct in Platinum

Shown with 2.25ct in Platinum

3.5 ct Lab Diamonds set in Platinum Cushion Cathedral Pavé Diamond Engagement Ring

Shown with 3.25ct in Platinum

Shown with 2.75ct in Platinum

Platinum cushion cut cathedral pave lab diamond engagement ring with three-quarter lab diamond wedding band ada diamonds design-357 and ad-171

Shown with 1.75ct in Platinum

Shown with 3.25ct in Platinum

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Diamond Bands

Cushion Cathedral Pavé Setting

Starting at $2,550 (Setting Only)

Timeless and beautiful, this setting features a four-prong basket with petite prongs and cathedral shoulders. Customize your lab diamond engagement ring with diamond sizes of 1.6-2.5mm in 3/4, half, or eternity coverage.

Diamond Bands

Starting at $2,550 (Setting Only)

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.