Engagement Rings

Created Diamonds Oval Petite Four Prong Solitaire Diamond Engagement Ring in White Gold (Main View)

Shown with 2ct in 18k White Gold

Lab Grown Diamonds set in White Gold Oval Petite Four Prong Solitaire Diamond Engagement Ring (Side View)

Shown with 2ct in 18k White Gold

14k Yellow Gold 2.5ct Oval Lab Diamond Solitaire Engagement Ring Ada Diamonds Design AD-143 Floral Background

Shown with 2.5ct in 14k Yellow Gold

2.5 Carat Lab Created Diamonds set in Yellow Gold Oval Petite Four Prong Solitaire (Main View)

Shown with 2.5ct in 14k Yellow Gold

4.25 ct Man Made Diamonds set in Platinum Oval Petite Four Prong Solitaire Diamond Engagement Ring (Main View)

Shown with 4.25ct in Platinum

2.0 Carat Lab Diamonds set in Platinum Oval Petite Four Prong Solitaire Diamond Engagement Ring (Side View)

Shown with 2ct in Platinum

4.75 Carat Diamonds set in Yellow Gold Oval Petite Four Prong Solitaire (Main View)

Shown with 4.75ct in 14k Yellow Gold

Shown with 4ct in Platinum

14k rose gold 4.25ct oval solitaire engagement ring ada diamonds design ad 143

Shown with 4.25ct in 14k Rose Gold

2.5 ct oval lab diamond engagement ring with wedding band in platinum ada diamonds design ad 143 and ad 171 macro

Shown with 2.5ct in Platinum

yellow gold 2.5 carat oval cut lab diamond petite solitaire engagement ring with oval eternity band ada diamonds design ad 193 macro

Shown with 2.5ct in 14k Yellow Gold

1.0 ct Synthetic Diamonds Oval Petite Four Prong Solitaire in Platinum (Main View)

Shown with 1ct in Platinum

Rose Gold 1.25 Carat Lab Diamond Four Prong Oval Solitaire Engagement Ring On Model Design AD143

Shown with 1.25ct in 14k Rose Gold

1.5 Carat Oval Lab Grown Diamond Four Prong Solitaire In White Gold on Hand Ada Diamonds Design AD-143

Shown with 1.5ct in 18k Yellow Gold

1.75 Carat Lab Diamonds set in 14k Yellow Gold Oval Petite Four Prong Solitaire Diamond Engagement Ring (Main View)

Shown with 1.75ct in 14k Yellow Gold

Hand Selected 1.75 Carat Diamonds set in Platinum Oval Petite Four Prong Solitaire (Main View)

Shown with 1.75ct in Platinum

2.0 Carat Lab Diamonds Oval Petite Four Prong Solitaire Diamond Engagement Ring in 18k Rose Gold (Main View)

Shown with 2ct in 18k Rose Gold

Platinum Oval Petite Four Prong Solitaire featuring Exceptional Quality 2.0 ctw Lab Diamonds (Main View)

Shown with 2ct in Platinum

2.25 Carat Oval Man Made Diamond Solitaire Engagement Ring in 14k Gold Ada Diamonds Design AD-143 on Hand

Shown with 2.25ct in 14k Yellow Gold

2.5 Carat Oval Lab Diamond Yellow Gold Solitaire Engagement Ring Ada Diamonds Design Number AD-143

Shown with 2.5ct in 14k Yellow Gold

2.75 ctw Lab Grown Diamonds Oval Petite Four Prong Solitaire Diamond Engagement Ring in Platinum & Yellow Gold (Main View)

Shown with 2.75ct in Platinum & 18k Yellow Gold

18k Yellow Gold 3 Carat Oval Manmade Diamond Solitaire Ada Diamonds Design AD-143 on Model

Shown with 3ct in 18k Yellow Gold

3.25 ctw Lab Created Diamonds Oval Petite Four Prong Solitaire in Yellow Gold (Main View)

Shown with 3.25ct in 14k Yellow Gold

18k Yellow Gold 3.5ct Oval Petite Four Prong Solitaire Ada Diamonds Design AD-143 on Model

Shown with 3.5ct in 18k Yellow Gold

Platinum Oval Petite Four Prong Solitaire Diamond Engagement Ring featuring 3.5 ct Diamonds (Main View)

Shown with 3.5ct in Platinum

3.5ct oval lab diamond in platinum solitaire

Shown with 3.5ct in Platinum

platinum 3.75ct oval lab grown diamond engagement ring ada diamonds design ad 143 on model

Shown with 3.75ct in Platinum

14k yellow gold 4ct Oval Lab Diamond Petite Four Prong Solitaire Engagement Ring Ada Diamonds Design AD-143 on Model

Shown with 4ct in 14k Yellow Gold

Platinum Oval Petite Four Prong Solitaire featuring 4.0 Carat Lab Created Diamonds (Main View)

Shown with 4ct in Platinum

Platinum Oval Petite Four Prong Solitaire Diamond Engagement Ring featuring 4.25 Carat Diamonds (Main View)

Shown with 4.25ct in Platinum

14k yellow gold gold four and a half carat oval lab diamond petite four prong solitaire engagement ring ada diamonds design ad 143 on model

Shown with 4.75ct in 14k Yellow Gold

Yellow Gold Oval Petite Four Prong Solitaire featuring 5.0 ct Lab Diamonds (Main View)

Shown with 5ct in 18k Yellow Gold

2.ct Oval Petite Four Prong Solitare with Hidden Halo Engagement Ring made in two tone 18k rose gold and 18k white gold made with laboratory grown diamonds ADA Diamonds ad 143

Shown with 2.25ct in Platinum & 18k Rose Gold

rose gold 2ct oval lab diamond solitaire engagement ring with u pave wedding band ada diamonds design ad 143 on model

Shown with 2ct in 14k Rose Gold

Platinum oval Solitaire Engagement Ring with Marquise Eternity Band Ada Diamonds Design AD-143 and AD-270

Shown with 2ct in Platinum

Oval Four Prong Lab Diamond Solitaire Engagement Ring and Leaf Lab Diamond Wedding Band in Yellow Gold Ada Diamonds Design AD-143

Shown with 1.5ct in 18k Yellow Gold

yellow gold oval cut lab diamond petite four prong solitaire engagement with oval eternity band ada diamonds design ad143 and ad193 on model

Shown with 2.5ct in 14k Yellow Gold

yellow gold 4ct oval lab diamond solitaire engagement ring with leaf wedding band ada diamonds design ad143 and ad216 on model

Shown with 4ct in 14k Yellow Gold

Shown with 2.75ct in Platinum

Shown with 3ct in 18k Yellow Gold

Platinum & Yellow Gold Oval Petite Four Prong Solitaire featuring Exceptional Quality 2.5 ct Man Made Diamonds (Side View)

Shown with 2.75ct in Platinum & 14k Yellow Gold

3.5 Carat Lab Diamonds Oval Petite Four Prong Solitaire in Platinum (Main View)

Shown with 3.5ct in Platinum

Shown with 3ct in Platinum

Shown with 4ct in 14k Yellow Gold

Shown with 2ct in 18k Rose Gold

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Solitaires

Oval Petite Four Prong Solitaire

Starting at $1,250 (Setting Only)

Delicate and feminine, 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 to 2.5mm.

Solitaires

Starting at $1,250 (Setting Only)

Delicate and feminine, 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 to 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.