18k White Gold Cushion Classic Four Prong Solitaire Diamond Engagement Ring featuring 2.0 Carat Lab Diamonds (Main View)
Shown with 2ct in 18k White Gold
Lab Diamonds set in White Gold Cushion Classic Four Prong Solitaire (Main View)
Shown with 2ct in 18k White Gold
Diamonds Cushion Classic Four Prong Solitaire in White Gold (Profile View)
Shown with 2ct in 18k White Gold
Created Diamonds Cushion Classic Four Prong Solitaire Diamond Engagement Ring in White Gold (Profile View)
Shown with 2ct in 18k White Gold
White Gold Cushion Classic Four Prong Solitaire Diamond Engagement Ring featuring Lab Diamonds (Side View)
Shown with 2ct in 18k White Gold
Diamonds Cushion Classic Four Prong Solitaire in White Gold (Side View)
Shown with 2ct in 18k White Gold
Platinum 3.5ct Cushion Cut Lab Grown Diamond Solitaire Engagement Ring Ada Diamonds Design AD-335 Macro
Shown with 3.5ct in Platinum
3.5ct Platinum Cushion Solitaire with Lab Diamond Ada Diamonds Design AD-335 Profile
Shown with 3.5ct in Platinum
1.5ct cushion cut lab diamond in classic four prong solitaire
Shown with 1.5ct in 18k White Gold
White and Rose Gold 2 Carat Cushion Cut Lab Diamond Solitaire Engagement Ring Ada Diamonds Design AD-335 on Model
Shown with 2ct in White Gold
2.25ct cushion cut lab diamond in classic four prong solitaire
Shown with 2.25ct in Platinum
2.75ct cushion cut lab diamond in classic four prong solitaire
Shown with 2.75ct in Platinum
Platinum 3.5 Carat Cushion Cut Lab Diamond Solitaire Engagement Ring Ada Diamonds Design AD-335 on Model
Shown with 3.5ct in Platinum
Shown with 3.5ct in Platinum
Shown with 3.5ct in Platinum
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Solitaires

Cushion Classic Four Prong Solitaire

Starting at $1,250 (Setting Only)

Elegant and timeless, this setting features four prongs for maximum security. 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.

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.

Only the Finest Quality

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