Engagement Rings

Diamonds set in White Gold Emerald Cathedral Solitaire (Main View)

Shown with 2ct in 18k White Gold

Lab Diamonds set in White Gold Emerald Cathedral Solitaire Diamond Engagement Ring (Side View)

Shown with 2ct in 18k White Gold

White Gold Emerald Cathedral Solitaire featuring Diamonds (Side View)

Shown with 2ct in 18k White Gold

18kt White Gold Emerald Cathedral Solitaire Diamond Engagement Ring featuring 2.75 Carat Lab Diamonds (Main View)

Shown with 2.75ct in 18k White Gold

Shown with 1.75ct in Platinum

5.0 ct Created Diamonds set in Platinum Emerald Cathedral Solitaire Diamond Engagement Ring (Main View)

Shown with 5ct in Platinum

1.75 ct Diamonds Emerald Cathedral Solitaire in Yellow Gold (Main View)

Shown with 1.75ct in 18k Yellow Gold

Diamonds Emerald Cathedral Solitaire in Platinum & Yellow Gold (Main View)

Shown with 2ct in Platinum & 14k Yellow Gold

Hand Selected 2.0 Carat Diamonds Emerald Cathedral Solitaire Diamond Engagement Ring in Yellow Gold (Main View)

Shown with 2ct in 14k Yellow Gold

Rose Gold Emerald Cathedral Solitaire featuring 1.5 Carat Lab Diamonds (Main View)

Shown with 1.5ct in 14k Rose Gold

Yellow Gold 1.25 Carat Lab Created Diamond Emerald Cut Cathedral Solitaire On Model Design AD068

Shown with 1.25ct in 18k Yellow Gold

1.5 ct Diamonds Emerald Cathedral Solitaire Diamond Engagement Ring in Platinum (Main View)

Shown with 1.5ct in Platinum

1.75 Carat Diamonds Emerald Cathedral Solitaire in Platinum (Main View)

Shown with 1.75ct in 18k Platinum

Platinum & Yellow Gold Emerald Cathedral Solitaire featuring 2.0 ct Diamonds (Main View)

Shown with 2ct in Platinum & 14k Yellow Gold

2.25 Carat White Gold Emerald Cut Lab Diamond Cathedral Solitaire Wedding Ring On Model Ada Diamonds Design AD068

Shown with 2.25ct in 18k White Gold

Platinum 2.5 Carat Emerald Cut Cathedral Solitaire Lab Diamond Engagement Ring On Model Ada Diamonds Design AD068

Shown with 2.5ct in Platinum

18k Yellow Gold 2.75ct Emerald Cut Lab Diamond Solitaire Engagement Ring Ada Diamonds Design AD-068 on Model

Shown with 2.75ct in 18k Yellow Gold

2.75 ct Lab Diamonds set in White Gold Emerald Cathedral Solitaire

Shown with 2.75ct in 18k White Gold

14k yellow gold 3 carat emerald cut lab created diamond solitaire engagement ring ada diamonds design 068 on model

Shown with 3ct in 14k Yellow Gold

3ct emerald cut lab diamond in cathedral solitaire setting

Shown with 3ct in Platinum

Platinum 3.5ct Emerald Cut Lab Diamond Cathedral Solitaire Engagement Ring Ada Diamonds Design AD-068 on Model

Shown with 3.5ct in Platinum

High Quality 3.75 ctw Lab Grown Diamonds set in 14k Yellow Gold Emerald Cathedral Solitaire (Main View)

Shown with 3.75ct in 14k Yellow Gold

5.0 Carat Lab Created Diamonds set in Platinum Emerald Cathedral Solitaire Diamond Engagement Ring (Main View)

Shown with 5ct in Platinum

Shown with 2.75ct in 18k Yellow Gold

Exceptional Quality 5.0 ctw Created Diamonds Emerald Cathedral Solitaire in Platinum (Main View)

Shown with 5ct in Platinum

Platinum Emerald Cathedral Solitaire featuring 5.0 ctw Diamonds (Main View)

Shown with 5ct in Platinum

Shown with 1.75ct in Platinum

Shown with 2ct in 14k Yellow Gold

Shown with 1.5ct in 14k Rose Gold

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Solitaires

Emerald Cathedral Solitaire

Starting at $1,350 (Setting Only)

Elegant and timeless, this setting features petite prongs and raised cathedral shoulders. Customize your lab diamond solitaire engagement ring with band widths of 1.8-2.5mm.

Solitaires

Starting at $1,350 (Setting Only)

Elegant and timeless, this setting features petite prongs and raised cathedral shoulders. Customize your lab diamond solitaire engagement ring with band widths of 1.8-2.5mm.

Selection Options

Ships in 2-3 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.