Engagement Rings

2.0 Carat Diamonds Round Classic Four Prong Solitaire Diamond Engagement Ring in Platinum (Main View)

Shown with 2ct in 18k White Gold

High Quality Lab Grown Diamonds set in White Gold Round Classic Four Prong Solitaire (Side View)

Shown with 2ct in 18k White Gold

platinum 2.5ct round classic lab diamond solitaire engagement ring ada diamonds design ad 144 macro

Shown with 2.5ct in Platinum

Shown with 2ct in Platinum

High Quality 3.5 Carat Lab Diamonds Round Classic Four Prong Solitaire in Platinum & Yellow Gold (Main View)

Shown with 3.5ct in Platinum & 14k Yellow Gold

3.5 Carat Diamonds set in Platinum & Yellow Gold Round Classic Four Prong Solitaire (Side View)

Shown with 3.5ct in Platinum & 14k Yellow Gold

2.25 Carat Lab Diamonds set in Yellow Gold Round Classic Four Prong Solitaire Diamond Engagement Ring (Side View)

Shown with 2.25ct in 18k Yellow Gold

Rose Gold Round Classic Four Prong Solitaire featuring 2.5 Carat Diamonds (Main View)

Shown with 2.5ct in 18k Rose Gold

2.75 ct Lab Created Diamonds set in 14k Yellow Gold Round Classic Four Prong Solitaire (Main View)

Shown with 2.75ct in 14k Yellow Gold

yellow gold 4 carat round lab created diamond classic four prong solitaire engagement ring ada diamonds design ad 144 with wedding band

Shown with 4.25ct in 14k Yellow Gold

18k yellow gold 1 ct round classic lab diamond solitaire engagement ring on model design ad 144

Shown with 1ct in 18k Yellow Gold

White Gold 1.25 Carat Round Brilliant Solitaire Engagement Ring Feat. Lab Grown Diamonds Ada Diamonds Design Number AD-144 on Model Shot

Shown with 1.25ct in Platinum

Platinum & 18k Yellow Gold Round Classic Four Prong Solitaire Diamond Engagement Ring featuring 1.5 Carat Lab Diamonds

Shown with 1.5ct in Platinum & 18k Yellow Gold

Yellow Gold 1.75 Carat Round Brilliant Solitaire Engagement Ring With Lab Diamonds Ada Diamonds Design Number AD-144 on Model

Shown with 1.75ct in Yellow Gold

platinum 2 carat round classic four prong lab diamond solitaire engagement ring on model ada diamonds design ad 144

Shown with 2ct in Platinum

Yellow Gold Round Classic Four Prong Solitaire Diamond Engagement Ring featuring 2.25 Carat Diamonds

Shown with 2.25ct in 18k Yellow Gold

Three Carat Round Classic Four Prong Solitaire Engagement Ring in Platinum with Lab Grown Diamonds Ada Diamonds Design Number 144 On Model

Shown with 2.5ct in 18k Platinum

High Quality 2.5 Carat Diamonds Round Classic Four Prong Solitaire Diamond Engagement Ring in Rose Gold

Shown with 2.5ct in 18k Rose Gold

2.75ct Classic Round four prong solitare made in platinum engagement ring made with lab made diamonds ADA Diamonds design ad 144

Shown with 2.75ct in Platinum

Shown with 3ct in Rose Gold

Platinum Round Classic Four Prong Solitaire Diamond Engagement Ring featuring Hand Selected 3.25 Carat Diamonds

Shown with 3.25ct in Platinum

3.5 Carat Round Platinum Lab Diamond Solitaire Engagement Ring with Wedding Band on Model Ada Diamonds Design Number AD-144

Shown with 3.5ct in Platinum

Platinum & Yellow Gold Round Classic Four Prong Solitaire Diamond Engagement Ring featuring 3.5 ct Man Made Diamonds (Main View)

Shown with 3.5ct in Platinum & 14k Yellow Gold

Lab Created Diamonds set in Platinum Round Classic Four Prong Solitaire (Main View)

Shown with 3.75ct in Platinum

Four Carat Round Four Prong Solitaire Lab Grown Diamond Engagement Ring On Hand Ada Diamonds Design 144

Shown with 4ct in Platinum

14k yellow gold 4.25ct round lab grown diamond in classic four prong solitaire engagement ring ada diamonds design ad 144 on model

Shown with 4.25ct in 14k Yellow Gold

5 Carat Round Classic Four Prong Engagement Ring On Model Ada Diamonds Design AD-144

Shown with 5ct in Platinum

3.25 ct Lab Grown Diamonds set in Platinum & Yellow Gold Round Classic Four Prong Solitaire Diamond Engagement Ring (Main View)

Shown with 3.25ct in Platinum & 18k Yellow Gold

Shown with 2ct in Platinum

3.0ct Round Diamond Engagement Ring in Rose Gold Four Prong Setting - AD-144

Shown with 3.5ct in 14k Rose Gold

Yellow Gold Classic Four Prong Solitaire Lab Diamond Engagement Ring On Model AD-144

Shown with 1ct in 18k Yellow Gold

Shown with 2.25ct in 14k Yellow Gold

Shown with 2.75ct in Platinum

Shown with 3.25ct in 14k Rose Gold

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Solitaires

Round Classic Four Prong Solitaire

Starting at $1,250 (Setting Only)

Affectionately known as "ring pop" by our Diamond Concierge team, this timeless and traditional solitaire setting features four prongs for maximum security. Customize your lab diamond solitaire engagement ring with band widths of 1.8-2.5mm.

Solitaires

Starting at $1,250 (Setting Only)

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.