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Lab-Grown Diamond Heart Necklaces

Express your love with lab-grown diamond heart necklaces from KAY. Combining romantic design with modern sustainability, lab-created diamond heart necklaces are the perfect gift for someone special or a treat for yourself.
24 Results items returned.
24 Results items returned.
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STUDIO BY KAY Baguette-Cut Lab-Grown Diamond Heart Necklace 1/3 ct tw 24K Yellow Gold Vermeil Sterling Silver

Sale

$249.99 
50% off
Was $499.99 
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STUDIO BY KAY Lab-Grown Diamond Pavé Wrapped Gift Necklace 1/10 ct tw 24K Yellow Gold Vermeil Sterling Silver 18"

Sale

$199.99 
50% off
Was $399.99 
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KAY Lab-Grown Diamonds Graduated Tilted Heart Necklace 1 ct tw 10K White Gold 18"

Sale

$749.99 
50% off
Was $1,499.99 
STUDIO BY KAY Lab-Grown Diamond Tilted Heart Outline Necklace 1/3 ct tw 24K Yellow Gold Vermeil Sterling Silver

$324.99 
35% off
Was $499.99 
KAY Signature Collection Lab-Grown Diamond Heart Necklace 1/4 ct tw 10K White Gold 18"

New

$399.99 
12 Day Advent Calendar Gift Set

New

$1,499.99 
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KAY Lab-Grown Diamonds Sideways Heart Necklace 1 ct tw 10K Yellow Gold 18"

Clearance

$719.99 
40% off
Was $1,199.99 
KAY Lab-Grown Diamonds Marquise & Round-Cut Heart Outline Necklace 1-1/4 ct tw 10K White Gold 18"

$844.99 
35% off
Was $1,299.99 
STUDIO BY KAY Lab-Grown Diamond Charms Necklace 1/6 ct tw 24K Yellow Gold Vermeil Sterling Silver 18"

New

$129.99 
35% off
Was $199.99 
KAY Signature Collection Lab-Grown Diamond Tilted Mini Heart Necklace 1/8 ct tw 18K Yellow Gold-Plated Sterling Silver 18"

New

$199.99 
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KAY Lab-Grown Diamonds Tilted Heart Necklace 1 ct tw 10K White Gold

Clearance

$719.99 
40% off
Was $1,199.99 
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KAY Lab-Grown Diamonds Heart Necklace 1-1/2 ct tw Round-Cut 14K White Gold 18"

Clearance

$899.99 
50% off
Was $1,799.99 
KAY Signature Collection Lab-Grown Diamond Heart Outline Necklace 1 ct tw 10K White Gold 18"

$799.99 
KAY x Rocksbox Lab-Grown Diamond & Puff Heart Charm Necklace 1/15 ct tw 24K Yellow Gold Vermeil Sterling Silver 19"

$199.99 
KAY Lab-Grown Diamonds Round-Cut Heart Necklace 1/2 ct tw 10K Rose Gold 18”

Clearance

$519.99 
60% off
Was $1,299.99 
STUDIO BY KAY Lab-Grown Diamond Textured Heart Necklace 1/10 ct tw 24K Yellow Gold Vermeil Sterling Silver 18"

New

$162.49 
35% off
Was $249.99 
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Memories Moments Magic Lab-Grown Diamond Double Heart Necklace 1/2 ct tw 10K Two-Tone Gold 18"

Clearance

$479.99 
40% off
Was $799.99 
STUDIO BY KAY Lab-Grown Diamond Heart Link Necklace 1/3 ct tw 24K Yellow Gold Vermeil Sterling Silver 18"

New

$389.99 
35% off
Was $599.99 
STUDIO BY KAY Heart-Shaped Lab-Grown Diamond "I Heart U" Necklace 1/4 ct tw Sterling Silver 18"

New

$249.99 
38% off
Was $399.99 
STUDIO BY KAY Emerald-Cut Lab-Grown Diamond & Heart Necklace 1/2 ct tw 24K Yellow Gold Vermeil Sterling Silver 18"

New

$454.99 
35% off
Was $699.99 
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KAY Lab-Grown Diamonds Heart Necklace 1 ct tw Round-cut 14K White Gold 18"

Clearance

$539.99 
70% off
Was $1,799.99 
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KAY Lab-Grown Diamonds Heart Necklace 1 ct tw 14K White Gold 18"

Clearance

$1,049.99 
30% off
Was $1,499.99 
KAY Lab-Grown Diamonds Heart Outline Necklace 1/2 ct tw 10K Yellow Gold 18"

$487.49 
35% off
Was $749.99 
KAY Lab-Grown Diamonds Tilted Heart Necklace 1/4 ct tw 10K Yellow Gold 18"

$454.99 
35% off
Was $699.99 
Showing 24 of 24 products