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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.
71 Results items returned.
71 Results items returned.
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KAY Signature Collection Marquise-Cut Lab-Grown Diamond Halo Engagement Ring 3/4 ct tw 14K White Gold

$999.99 
KAY Lab-Grown Diamonds Marquise & Round-Cut Two-Row Ring 3/8 ct tw 10K Yellow Gold

Online Exclusive

$1,199.99 
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Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White Gold

$1,169.99 
35% off
Was $1,799.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 3/4 ct tw 14K White Gold

Online Exclusive

$1,039.99 
35% off
Was $1,599.99 
Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 2 ct tw 14K Rose Gold (F/SI2) (F/SI2)

Online Exclusive

$3,749.99 
25% off
Was $4,999.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 1 ct tw 14K Yellow Gold (F/SI2)

$1,724.99 
25% off
Was $2,299.99 
Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Ring 2 ct tw 14K White Gold (F/SI2)

$3,749.99 
25% off
Was $4,999.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 1 ct tw 14K White Gold (F/SI2)

$1,724.99 
25% off
Was $2,299.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Diamond Engagement Ring 1-1/2 ct tw 14K White Gold

$2,274.99 
35% off
Was $3,499.99 
Now + Forever Lab-Grown Diamonds Marquise-Cut Seven-Stone Anniversary Ring 2 ct tw 14K Rose Gold

Online Exclusive

$2,924.99 
35% off
Was $4,499.99 
Monique Lhuillier Bliss Blue & White Lab-Grown Diamond Anniversary Ring 1/3 ct tw 18K White Gold

$909.99 
35% off
Was $1,399.99 
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Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Engagement Ring 3-7/8 ct tw 18K Two-Tone Gold

$5,654.99 
35% off
Was $8,699.99 
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Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Double Halo Engagement Ring 2 ct tw 14K White Gold

$2,729.99 
35% off
Was $4,199.99 
Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Engagement Ring 2-1/2 ct tw 18K Rose Gold

Online Exclusive

$4,484.99 
35% off
Was $6,899.99 
Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Plus Engagement Ring 3-1/8 ct tw 14K Yellow Gold (F/VS2)

$4,224.99 
35% off
Was $6,499.99 
Monique Lhuillier Bliss Marquise-Cut Pink Lab-Grown Diamond Solitaire Anniversary Ring 1/8 ct tw 18K White Gold

$844.99 
35% off
Was $1,299.99 
Neil Lane Artistry Heritage Marquise-Cut Lab-Grown Diamond Double Halo Engagement Ring 1-5/8 ct tw 14K White Gold

$2,079.99 
35% off
Was $3,199.99 
THE LEO Legacy Lab-Grown Diamond Marquise-Cut Engagement Ring 1-1/3 ct tw 14K Yellow Gold

$2,534.99 
35% off
Was $3,899.99 
Now + Forever Marquise-Cut Lab-Grown Diamond Engagement Ring 3-1/2 ct tw 14K Yellow Gold

Online Exclusive

$5,004.99 
35% off
Was $7,699.99 
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Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Engagement Ring 2 ct tw 14K White Gold

$3,444.99 
35% off
Was $5,299.99 
Oval & Marquise-Cut Lab-Grown Diamond Fashion Ring 1/3 ct tw 10K Yellow Gold

Online Exclusive

$939.99 
Now + Forever Lab-Grown Diamonds Marquise & Round-Cut Enhancer Ring 1 ct tw 14K Yellow Gold

Online Exclusive

$1,819.99 
35% off
Was $2,799.99 
Now + Forever Lab-Grown Diamonds Marquise & Round-Cut Two-Row Contour Ring 3/4 ct tw 14K White Gold

$1,234.99 
35% off
Was $1,899.99 
Now + Forever Lab-Grown Diamonds Marquise & Round-Cut Enhancer Ring 1-1/2 ct tw 14K Yellow Gold

$2,274.99 
35% off
Was $3,499.99 
Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Engagement Ring 2-3/4 ct tw 14K Yellow Gold

$4,484.99 
35% off
Was $6,899.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Plus Engagement Ring 1-7/8 ct tw 14K Yellow Gold (F/VS2)

$2,534.99 
35% off
Was $3,899.99 
KAY Lab-Grown Diamonds Marquise-Cut Enhancer Ring 3-1/5 ct tw 14K Yellow Gold

$3,054.99 
35% off
Was $4,699.99 
Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Halo Engagement Ring 2 ct tw 18K White Gold

$2,859.99 
35% off
Was $4,399.99 
Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Engagement Ring 4-5/8 ct tw 18K Yellow Gold

New

$7,149.99 
35% off
Was $10,999.99 
Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 1-1/4 ct tw 14K Rose Gold

Online Exclusive

$2,079.99 
35% off
Was $3,199.99 
Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Anniversary Band 1-1/2 ct tw 14K White Gold

$1,819.99 
35% off
Was $2,799.99 
Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Engagement Ring 2-1/3 ct tw 18K White Gold

$4,354.99 
35% off
Was $6,699.99 
Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Ring 1 ct tw 14K White Gold

$1,429.99 
35% off
Was $2,199.99 
Now + Forever Lab-Grown Diamonds Marquise- & Round-Cut Enhancer Ring 3/4 ct tw 14K Yellow Gold

New

$1,819.99 
35% off
Was $2,799.99 
KAY Lab-Grown Diamond Marquise-Cut Promise Ring 1/6 ct tw 10K Rose Gold

Online Exclusive

$357.49 
35% off
Was $549.99 
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Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White Gold

$1,169.99 
35% off
Was $1,799.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Engagement Ring 3-1/2 ct tw 14K Yellow Gold

$5,004.99 
35% off
Was $7,699.99 
KAY Lab-Grown Diamonds Marquise-Cut Curved Crossover Ring 1/2 ct tw 10K White Gold

Online Exclusive

$1,699.99 
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Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Engagement Ring 4-5/8 ct tw 14K White Gold

$6,434.99 
35% off
Was $9,899.99 
KAY Lab-Grown Diamonds Marquise & Round-Cut Crossover Fashion Ring 2-1/2 ct tw 10K White Gold

Online Exclusive

$3,119.99 
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THE LEO Legacy Lab-Grown Diamond Marquise-Cut Engagement Ring 2-1/2 ct tw 14K Yellow Gold

$4,549.99 
35% off
Was $6,999.99 
Memories Moments Magic Lab-Grown Diamonds Marquise & Trillion-Cut Three-Stone Engagement Ring 3-1/3 ct tw 14K White Gold

Online Exclusive

$4,744.99 
35% off
Was $7,299.99 
Showing 42 of 71 products