Lab-Grown Marquise Diamond Rings

Discover the unique elegance of lab-grown marquise diamond rings at KAY. Shop stunning and sustainable lab-created marquise diamond engagement rings to anniversary bands that fit your style.

Lab-Grown Marquise Diamond Rings

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

Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Engagement Ring 2-1/2 ct tw 18K Rose GoldOnline Exclusive

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 Engagement Ring 2 ct tw 14K Rose GoldOnline Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Seven-Stone Anniversary Ring 2 ct tw 14K Rose GoldOnline Exclusive

Neil Lane Artistry Pear, Marquise & Round-Cut Lab-Grown Diamond Enhancer Ring 1 ct tw 14K White GoldClearance

Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Halo Engagement Ring 2 ct tw 14K White GoldClearance

Neil Lane Artistry Heritage Marquise-Cut Lab-Grown Diamond Double Halo Engagement Ring 1-5/8 ct tw 14K White GoldNew

Previously Owned Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 1 ct tw 14K White Gold (F/SI2)Previously Owned Lovingly Restored

Previously Owned Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White GoldPreviously Owned Lovingly Restored

Previously Owned Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White GoldPreviously Owned Lovingly Restored

Now + Forever Marquise-Cut Lab-Grown Diamond Engagement Ring 3-1/2 ct tw 14K Yellow GoldOnline Exclusive

STUDIO BY KAY Marquise-Cut Lab-Grown Diamond Solitaire Curve Ring 1/5 ct tw 24K Yellow Gold Vermeil Sterling SilverNew

Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Three-Row Anniversary Ring 1-1/4 ct tw 14K White GoldClearance

Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Engagement Ring 3-3/8 ct tw 18K White GoldNew

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

Monique Lhuillier Bliss Marquise & Round-Cut Lab-Grown Diamond Anniversary Ring 7/8 ct tw 18K White GoldClearance

Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Engagement Ring 1-7/8 ct tw 14K White GoldClearance

Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Halo Engagement Ring 2 ct tw 18K Yellow GoldNew

KAY Lab-Grown Diamonds Marquise-Cut Enhancer Ring 3-1/5 ct tw 14K Yellow GoldNew

Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Two-Row Anniversary Ring 1 ct tw 14K White GoldClearance

Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 1-1/4 ct tw 14K Rose GoldOnline Exclusive

KAY Lab-Grown Diamond Marquise-Cut Promise Ring 1/6 ct tw 10K Rose GoldNew

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

Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Engagement Ring 2-1/2 ct tw 18K Rose Gold
Online Exclusive

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 Engagement Ring 2 ct tw 14K Rose Gold
Online Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Seven-Stone Anniversary Ring 2 ct tw 14K Rose Gold
Online Exclusive

Neil Lane Artistry Pear, Marquise & Round-Cut Lab-Grown Diamond Enhancer Ring 1 ct tw 14K White Gold
Clearance

Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Halo Engagement Ring 2 ct tw 14K White Gold
Clearance

Neil Lane Artistry Heritage Marquise-Cut Lab-Grown Diamond Double Halo Engagement Ring 1-5/8 ct tw 14K White Gold
New

Previously Owned Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 1 ct tw 14K White Gold (F/SI2)
Previously Owned Lovingly Restored

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

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

Now + Forever Marquise-Cut Lab-Grown Diamond Engagement Ring 3-1/2 ct tw 14K Yellow Gold
Online Exclusive

STUDIO BY KAY Marquise-Cut Lab-Grown Diamond Solitaire Curve Ring 1/5 ct tw 24K Yellow Gold Vermeil Sterling Silver
New

Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Three-Row Anniversary Ring 1-1/4 ct tw 14K White Gold
Clearance

Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Engagement Ring 3-3/8 ct tw 18K White Gold
New

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

Monique Lhuillier Bliss Marquise & Round-Cut Lab-Grown Diamond Anniversary Ring 7/8 ct tw 18K White Gold
Clearance

Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Engagement Ring 1-7/8 ct tw 14K White Gold
Clearance

Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Halo Engagement Ring 2 ct tw 18K Yellow Gold
New

KAY Lab-Grown Diamonds Marquise-Cut Enhancer Ring 3-1/5 ct tw 14K Yellow Gold
New

Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Two-Row Anniversary Ring 1 ct tw 14K White Gold
Clearance

Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 1-1/4 ct tw 14K Rose Gold
Online Exclusive

KAY Lab-Grown Diamond Marquise-Cut Promise Ring 1/6 ct tw 10K Rose Gold
New