Shop Lab-Grown Marquise Diamond Rings

Diamond jewelry is even more fun when you go bold with the style. Shop KAY’s diamond rings, and find new ways to express your style. Shop every style—from bold enough to carry a look to understated diamond rings that you’ll love to layer.

Promise
Engagement
Fashion
Wedding

Lab-Grown Marquise Diamond Rings

Filter By

Get It Fast

Offers & Discounts

Price

Metal Color

Metal Type

Stone Type (1)

Stone Shape (1)

Stone Color

Carat Range

Gender

Style

Jewelry Type

Ring Size

Collections

Ring Style

Customer Rating

Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White Gold
Sale

Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 3/4 ct tw 14K White Gold

Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White Gold

Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 2 ct tw 14K Rose Gold (F/SI2) (F/SI2)
Online Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 1 ct tw 14K Rose Gold (F/SI2)
Online Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 1 ct tw 14K Yellow Gold (F/SI2)