Skip to Content Skip to Navigation Skip to Offers

Women's Lab-Grown Diamond Necklaces

Browse KAY's collection of women's lab-grown diamond necklaces, perfect for adding a sophisticated sparkle to your wardrobe. From tennis necklaces to solitaire pendants, shop lab-created diamond necklaces in your style.
359 Results items returned.
359 Results items returned.
undefinedundefinedundefined
KAY Lab-Grown Diamonds Halo Necklace 1/4 ct tw 10K White Gold 18"

$499.99 
undefinedundefinedundefined
STUDIO BY KAY Lab-Grown Diamond Cross Necklace 1/10 ct tw 24K Yellow Gold Vermeil Sterling Silver

$199.99 
KAY Lab-Grown Diamonds Cross Necklace 1/20 ct tw Sterling Silver

Online Exclusive

$69.99 
Unstoppable Love Lab-Grown Diamond Necklace 1-1/4 ct tw Sterling Silver 18"

New

$999.99 
undefinedundefinedundefined
Family & Mother's Birthstone Heart Necklace (2-4 Stones and Lines)

Personalized

$163.62 
KAY Lab-Grown Diamond Accent Freeform Cross Necklace Sterling Silver

Online Exclusive

$69.99 
undefinedundefinedundefined
KAY Signature Collection Lab-Grown Diamond Tilted Mini Heart Necklace 1/8 ct tw 18K Yellow Gold-Plated Sterling Silver 18"

$199.99 
undefinedundefinedundefined
Birthstone Family & Mother's Necklace (2-4 Stones)

Personalized

$136.42 
KAY Signature Collection Lab-Grown Diamond Mini Cross Necklace 1/10 ct tw 18K Yellow Gold-Plated Sterling Silver 18"

$199.99 
undefinedundefinedundefined
Mother & Child Heart-Shaped Birthstone Necklace (1 Stone)

Personalized

$162.44 
Monique Lhuillier Bliss Lab-Grown Diamond Disc Station Necklace 1/2 ct tw Platinum-Plated Sterling Silver 18"

Online Exclusive

$699.99 
Monique Lhuillier Bliss Marquise, Pear & Round-Cut Lab-Grown Diamond Cluster Necklace 1 ct tw Platinum-Plated Sterling Silver 18"

$999.99 
Monique Lhuillier Bliss Lab-Grown Diamond Accent Butterfly Necklace Platinum-Plated Sterling Silver 18"

$299.99 
Monique Lhuillier Bliss Lab-Grown Diamond Bow Necklace 5/8 ct tw Platinum-Plated Sterling Silver 18"

$699.99 
Monique Lhuillier Bliss Marquise-Cut & Round-Cut Lab-Grown Diamond Bar Necklace 7/8 ct tw Platinum-Plated Sterling Silver 18"

$799.99 
Monique Lhuillier Bliss Pear-Shaped Lab-Grown Diamond Drop Necklace 3/4 ct tw Platinum-Plated Sterling Silver 18"

$699.99 
Monique Lhuillier Bliss Lab-Grown Diamond Butterfly Necklace 1/3 ct tw Platinum-Plated Sterling Silver

$499.99 
Toi et Moi Lab-Grown Diamond Round & Marquise-Cut Necklace 1/2 ct tw 14K Yellow Gold 18"

Online Exclusive

$999.99 
Monique Lhuillier Bliss Marquise & Round-Cut Lab-Grown Diamond Dangle Necklace 3/8 ct tw Platinum-Plated Sterling Silver 17"

$799.99 
KAY Lab-Grown Diamonds Emerald-Cut Sideways Solitaire Necklace 1/2 ct tw 14K Yellow Gold 18"

Online Exclusive

$1,149.99 
KAY Lab-Grown Diamonds Emerald-Cut Sideways Solitaire Necklace 1/3 ct tw 14K Yellow Gold 18"

Online Exclusive

$849.99 
KAY Lab-Grown Diamonds Emerald-Cut Sideways Solitaire Necklace 1/2 ct tw 14K White Gold 18"

Online Exclusive

$1,149.99 
KAY Lab-Grown Diamonds Emerald-Cut Sideways Solitaire Necklace 1/3 ct tw 14K White Gold 18"

Online Exclusive

$849.99 
KAY Lab-Grown Diamonds Oval-Cut Sideways Solitaire Necklace 1/2 ct tw 14K Yellow Gold 18"

Online Exclusive

$1,149.99 
KAY Lab-Grown Diamonds Oval-Cut Sideways Solitaire Necklace 1/3 ct tw 14K Yellow Gold 18"

Online Exclusive

$849.99 
KAY Lab-Grown Diamonds Oval-Cut Sideways Solitaire Necklace 1/2 ct tw 14K White Gold 18"

Online Exclusive

$1,149.99 
KAY Lab-Grown Diamonds Oval-Cut Sideways Solitaire Necklace 1/3 ct tw 14K White Gold 18"

Online Exclusive

$849.99 
Lab-Grown Diamonds by KAY Princess-Cut Solitaire Necklace 1/2 ct tw 14K Yellow Gold 19"

Online Exclusive

$949.99 
Lab-Grown Diamonds by KAY Round-Cut Solitaire Necklace 1/2 ct tw 14K Yellow Gold 19"

Online Exclusive

$949.99 
Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Trio Necklace 1 ct tw Platinum-Plated Sterling Silver 18"

Online Exclusive

$899.99 
KAY Lab-Grown Diamonds Round-Cut Bezel-Set Solitaire Necklace 1/3 ct tw 14K Yellow Gold (F/SI2) 18"

$799.99 
KAY Signature Collection Lab-Grown Diamond Open Circle Necklace 1/10 ct tw 18K Yellow Gold-Plated Sterling Silver 18"

$199.99 
undefinedundefinedundefined
Unstoppable Love Lab-Grown Diamond Marquise Frame Necklace 3 ct tw 14K White Gold 19"

$3,999.99 
KAY Lab-Grown Diamonds Curb Chain Necklace 5 ct tw Sterling Silver 18"

$4,699.99 
Unstoppable Love Lab-Grown diamond Teardrop Necklace 1-1/2 ct tw 14K White Gold 19ā€

$2,799.99 
undefinedundefinedundefined
Milestones Lab-Grown Diamond Station Necklace 1 ct tw 10K White Gold 18"

$1,699.99 
undefinedundefinedundefined
Unstoppable Love Lab-Grown Diamond Cross Necklace 1/3 ct tw 10K Yellow Gold 19"

$1,499.99 
KAY Signature Collection Lab-Grown Diamond Heart Necklace 1/2 ct tw 10K Yellow Gold 18"

$599.99 
KAY Signature Collection Lab-Grown Diamond Cross Necklace 2 ct tw 10K White Gold 18"

$1,599.99 
KAY Lab-Grown Diamonds Emerald-Cut Bezel-Set Cross Necklace 3/4 ct tw 10K Yellow Gold 18"

$1,499.99 
undefinedundefinedundefined
Unstoppable Love Lab-Grown Diamond Halo Necklace 2-1/2 ct tw 14K White Gold 19"

$3,499.99 
Unstoppable Love Lab-Grown Diamond Necklace 1/2 ct tw 10K White Gold 19"

$1,499.99 
Showing 42 of 359 products