Engagement Rings

Synthetic Diamonds set in White Gold Radiant Petite Four Prong Solitaire Diamond Engagement Ring (Main View)

Shown with 2ct in 18k White Gold

White Gold Radiant Petite Four Prong Solitaire Diamond Engagement Ring featuring Lab Diamonds (Side View)

Shown with 2ct in 18k White Gold

Shown with 2.5ct in 14k Yellow Gold

yellow Gold 3 Carat Radiant Lab Diamond Solitaire with 3ct Oval Wedding Band Ada Diamonds Design AD-250 Macro

Shown with 3ct in Yellow Gold

platinum and yellow gold 3.75 ct radiant cut lab diamond solitaire engagement ring ada diamonds design ad 250 macro

Shown with 4ct in Platinum & 14k Yellow Gold

2.25 ct Lab Diamonds Radiant Petite Four Prong Solitaire Diamond Engagement Ring in (Side View)

Shown with 2.25ct in 14k Yellow Gold

4.25 Carat Diamonds set in Rose Gold Radiant Petite Four Prong Solitaire Diamond Engagement Ring (Main View)

Shown with 4.25ct in 14k Rose Gold

Exceptional Quality 3.5 Carat Diamonds Radiant Petite Four Prong Solitaire in Platinum & Yellow Gold (Main View)

Shown with 3.5ct in Platinum & 14k Yellow Gold

Shown with 1.75ct in 14k Rose Gold

platinum radiant cut lab diamond solitaire wedding set with prong set wedding band ada diamonds design ad 250 and ad081

Shown with 2.5ct in Platinum

14k Yellow Gold 1.25 Carat Radiant Cut Lab Diamond Solitaire Engagement Ring with Diamond Gallery Ada Diamonds Design Number AD-250 on Model

Shown with 1.25ct in 14k Yellow Gold

Platinum 1.5ct Radiant Solitaire Engagement Ring with Lab Diamond Ada Diamonds Design AD250

Shown with 1.5ct in Platinum

1.75ct radiant cut lab diamond in rose gold solitaire

Shown with 1.75ct in Rose Gold

Platinum Four Prong Solitaire Engagement Ring with 2 Carat Radiant Lab Diamond Ada Diamonds Design AD250

Shown with 2ct in Platinum

Platinum Radiant Petite Four Prong Solitaire Diamond Engagement Ring featuring 2.25 Carat Lab Diamonds (Main View)

Shown with 2.25ct in Platinum & 14k Yellow Gold

Radiant Petite Four Prong Solitaire featuring 2.5 ct Diamonds

Shown with 2.5ct in Platinum

2.5 Carat Radiant Solitaire Engagement Ring in White Gold on Model made with Lab Diamonds Ada Diamonds Design 250

Shown with 2.5ct in 18k Yellow Gold

Radiant Petite Four Prong Solitaire featuring 2.75 ctw Lab Created Diamonds

Shown with 2.75ct in Platinum & 14k Yellow Gold

yellow gold three carat radiant cut lab diamond engagement ring in on model ada diamonds design ad 250

Shown with 3ct in 18k Yellow Gold

3.25ct radiant cut lab diamond in solitaire

Shown with 3.25ct in Yellow Gold

3.25ct radiant cut lab diamond in petite four prong solitaire with oval eternity band

Shown with 3.25ct in 14k Yellow Gold

Platinum & Yellow Gold Radiant Petite Four Prong Solitaire featuring 3.5 ct Lab Diamonds ()

Shown with 3.5ct in Platinum & 14k Yellow Gold

platinum and yellow gold 3.75ct radiant cut lab created diamond solitaire engagement ring ada diamonds design ad 250 on model

Shown with 3.75ct in Platinum & 14k Yellow Gold

Shown with 4ct in 18k White Gold

Hand Selected 4.25 Carat Lab Diamonds set in Rose Gold Radiant Petite Four Prong Solitaire Diamond Engagement Ring (Main View)

Shown with 4.25ct in 14k Rose Gold

4.75ct radiant cut lab diamond in solitaire

Shown with 4.75ct in Platinum

Shown with 2ct in Platinum & 14k Yellow Gold

Shown with 4ct in Platinum

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Solitaires

Radiant Petite Four Prong Solitaire

Starting at $1,250 (Setting Only)

Simple and stunning, this setting features petite prongs and a gallery wire for maximum light exposure. Customize your lab diamond solitaire engagement ring with band widths of 1.8-2.5mm.

Solitaires

Starting at $1,250 (Setting Only)

Simple and stunning, this setting features petite prongs and a gallery wire for maximum light exposure. 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.