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1 Carat Lab-Grown Diamond Necklaces

Show your shine with 1 carat lab-grown diamond necklaces. From intricate 1 carat lab-grown diamond pendants to classic solitaire necklaces, find your style at Kay.
25 Results items returned.
25 Results items returned.
Closer Together Lab-Grown Diamond Halo Smile Necklace 1 ct tw 10K White Gold 17"

$1,499.99 
Yellow & White Lab-Grown Diamond Alternating Smile Necklace 1 ct tw 10K Yellow Gold 18"

Online Exclusive

$1,299.99 
KAY Lab-Grown Diamonds Men's Circle Necklace 1 ct tw Sterling Silver 22"

Online Exclusive

$799.99 
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STUDIO BY KAY Lab-Grown Diamonds Round-Cut Solitaire Necklace 1 ct tw 24K Yellow Gold Vermeil Sterling Silver 18" (F/SI2)

$999.99 
Memories Moments Magic Pear-Shaped Lab-Grown Diamond Three-Stone Drop Necklace 1 ct tw 14K Yellow Gold 18"

Online Exclusive

$1,759.99 
KAY Lab-Grown Diamonds Pear-Shaped Halo Necklace 1 ct tw 10K Yellow Gold 18"

$1,499.99 
Toi et Moi Lab-Grown Diamond Emerald-Cut & Pear-Shaped Necklace 1 ct tw 14K Yellow Gold 18"

Online Exclusive

$1,499.99 
KAY Lab-Grown Diamonds Drop Necklace 1 ct tw 10K White Gold 18"

$1,399.99 
Toi et Moi Lab-Grown Diamond Emerald-Cut & Pear-Shaped Necklace 1 ct tw 14K White Gold 18"

Online Exclusive

$1,499.99 
Yellow & White Lab-Grown Diamond Circle Necklace 1 ct tw 10K Yellow Gold 18"

Online Exclusive

$1,399.99 
KAY Lab-Grown Diamonds Adjustable Tennis Necklace 1 ct tw Sterling Silver 18"

Clearance

$479.99 
40% off
Was $799.99 
KAY Lab-Grown Diamonds Solitaire Diamond Necklace 1 ct tw Round-cut 14K White Gold 19" (F/VS2)

Clearance

$1,534.00 
60% off
Was $3,835.00 
All You Are Multi-Shape Lab-Grown Diamond Three-Stone Cluster Necklace 1 ct tw 14K White Gold 18"

Clearance

$779.99 
40% off
Was $1,299.99 
KAY Lab-Grown Diamonds Bezel-Set Station Necklace 1 ct tw 10K White Gold 18"

Clearance

$839.99 
30% off
Was $1,199.99 
Memories Moments Magic Pear-Shaped Lab-Grown Diamond Drop Three-Stone Necklace 1 ct tw 14K White Gold 18"

Clearance

$1,124.99 
25% off
Was $1,499.99 
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Previously Owned KAY Lab-Grown Diamonds Heart Necklace 1 ct tw 14K White Gold 18"

Previously Owned Lovingly Restored

$749.99 
50% off
Was $1,499.99 
KAY Lab-Grown Diamonds Flower Necklace 1 ct tw 10K Yellow Gold 18"

Clearance

$599.99 
40% off
Was $999.99 
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KAY Lab-Grown Diamonds Riviera Necklace 1 ct tw 10K White Gold 17"

Clearance

$1,049.99 
30% off
Was $1,499.99 
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 Tilted Heart Necklace 1 ct tw 10K White Gold

Clearance

$719.99 
40% off
Was $1,199.99 
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Unstoppable Love Lab-Grown Diamond Marquise Frame Necklace 1 ct tw 10K Yellow Gold 19"

Clearance

$1,199.99 
40% off
Was $1,999.99 
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KAY Lab-Grown Diamonds Bezel-Set Diamond Necklace 1 ct tw 10K White Gold 17"

Clearance

$1,499.99 
50% off
Was $2,999.99 
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Unstoppable Love Lab-Grown Diamond Oval Frame Necklace 1 ct tw 10K White Gold 19"

Clearance

$1,199.99 
40% off
Was $1,999.99 
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Unstoppable Love Lab-Grown diamond Necklace 1 ct tw 14K Yellow Gold 19"

Clearance

$1,499.99 
40% off
Was $2,499.99 
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KAY Lab-Grown Diamonds Heart Necklace 1 ct tw 14K White Gold 18"

Clearance

$899.99 
40% off
Was $1,499.99 
Showing 25 of 25 products
Discover 1 carat lab grown diamond necklaces at Kay in classic solitaire pendants to dazzling tennis necklace designs. Explore heart pendant designs, multi-stone necklaces, and diamond station necklaces that total 1 carat for amazing sparkle. Highlight round, oval, pear, or your favorite diamond shape in beautifully crafted diamond necklace styles from Kay Jewelers.