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.

Lab-Grown Diamond Heart Necklaces

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Necklace Style

Price

Metal Type

Metal Color

Gender

Chain Type

Chain Length

Stone Type (1)

Stone Shape

Stone Color

Style (1)

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Jewelry Type

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

Family & Mother's Birthstone Heart Necklace 18" (2-4 Stones and Lines)Personalized

Mother & Child Heart-Shaped Birthstone Necklace (1 Stone)Personalized

Mom + Me Heart-Shaped Lab-Grown Diamond Double Circle Necklace 3/8 ct tw 10K Yellow Gold 18"New

Rocksbox Lab-Grown Diamond Charm & Heart Necklace 1/15 ct tw 24K Yellow Gold Vermeil Sterling Silver 19"New

KAY Signature Collection Lab-Grown Diamond Heart Outline Necklace 1 ct tw 10K White Gold 18"

Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Heart Necklace 1-1/3 ct tw 14K White Gold 18"New

STUDIO BY KAY Lab-Grown Diamond Textured Heart Necklace 1/10 ct tw 24K Yellow Gold Vermeil Sterling Silver 20"

KAY Lab-Grown Diamond Accent Slanted Heart Disc Necklace Sterling SilverOnline Exclusive

KAY Lab-Grown Diamonds 3-Stone Slanted Heart Necklace 1/20 ct tw Sterling SilverOnline Exclusive

KAY Lab-Grown Diamonds Heart & "Mini" Charms Necklace 1/4 ct tw 10K Yellow GoldNew

KAY Lab-Grown Diamonds Scatter Heart & "Mom" Charms Necklace 1/3 ct tw 10K Yellow GoldNew

KAY Lab-Grown Diamonds Cross Heart Charm Necklace 1/3 ct tw 18K Yellow Gold-Plated Sterling Silver 18"New

STUDIO BY KAY Baguette-Cut Lab-Grown Diamond Heart Necklace 1/3 ct tw 24K Yellow Gold Vermeil Sterling Silver

KAY Lab-Grown Diamond Accent Slanted Freeform Open Heart Necklace Sterling SilverOnline Exclusive

Disney Treasures Winnie the Pooh "Piglet" Lab-Grown Diamond Heart Necklace 1/20 ct tw Sterling Silver & 18K Rose Gold Vermeil 18"New

STUDIO BY KAY Lab-Grown Diamond Charms Necklace 1/6 ct tw 24K Yellow Gold Vermeil Sterling Silver 18"

KAY Signature Collection Lab-Grown Diamond Tilted Mini Heart Necklace 1/8 ct tw Sterling Silver 18"

KAY Lab-Grown Diamonds Heart Halo Necklace 1/4 ct tw 10K Yellow Gold 18"Online Exclusive

KAY Lab-Grown Diamonds Tilted Heart Necklace 1/10 ct tw 10K Yellow Gold 18"Online Exclusive

KAY Lab-Grown Diamond Accent Open Heart Necklace Sterling SilverOnline Exclusive

STUDIO BY KAY Lab-Grown Diamond 1/4 ct tw Hearts Rondelle Charm 24K Yellow Gold Vermeil Sterling SilverNew

KAY Lab-Grown Diamonds Heart Frame Necklace 1/4 ct tw 10K White Gold 18"Online Exclusive

KAY Lab-Grown Diamonds Heart Necklace 1/20 ct tw Sterling SilverOnline Exclusive

KAY Lab-Grown Diamonds Double Heart Necklace 1/10 ct tw Sterling Silver 18"Online Exclusive

KAY Lab-Grown Diamonds Open Heart Necklace 1 ct tw 10K White Gold 18"Online Exclusive

KAY Lab-Grown Diamonds Double Heart Lariat Necklace 1/6 ct tw 18K Yellow Gold-Plated Sterling Silver 18"Online Exclusive

KAY Lab-Grown Diamonds Heart Necklace 1/2 ct tw 14K Yellow Gold-Plated Sterling Silver 18"Online Exclusive

KAY Lab-Grown Diamonds Heart-Shaped Necklace 1/2 ct tw 10K Yellow Gold 18"Online Exclusive

KAY Lab-Grown Diamonds Double Tilted Heart Necklace 1/15 ct tw Sterling Silver 18"Online Exclusive

KAY Lab-Grown Diamonds Interlocking Hearts Necklace 1/4 ct tw Sterling Silver & 10K Rose Gold 18"Online Exclusive

Memories Moments Magic Lab-Grown Diamond Double Heart Necklace 1/2 ct tw Sterling Silver & 10K Yellow Gold 18"

KAY Lab-Grown Diamonds Heart-Shaped Half-Bow Necklace 1/6 ct tw 10K Yellow Gold 18"Online Exclusive

KAY Lab-Grown Diamonds Double Heart Necklace 1/4 ct tw 10K Yellow Gold 18"Online Exclusive

KAY Lab-Grown Diamonds Intertwined Double Heart Necklace 1/4 ct tw 10K Yellow Gold18"Online Exclusive

Disney Treasures Winnie the Pooh Lab-Grown Diamond Heart Drop Necklace 1/8 ct tw 24K Yellow Gold Vermeil Sterling Silver 18"New

KAY Lab-Grown Diamonds Heart Lariat Necklace 1/5 ct tw Sterling Silver 18"Online Exclusive

KAY Lab-Grown Diamonds Heart Multi-Stone Double Halo Necklace 3/4 ct tw Sterling Silver 18"Online Exclusive

Monique Lhuillier Bliss Lab-Grown Diamond Heart Necklace 1/2 ct tw Platinum-Plated Sterling Silver 18"New

KAY Lab-Grown Diamonds Heart Necklace 1/10 ct tw 10K Yellow Gold 18"New

STUDIO BY KAY Lab-Grown Diamond Pavé Hearts Rondelle Charm 1/6 ct tw 24K Yellow Gold Vermeil Sterling SilverNew

KAY Lab-Grown Diamonds Cross Heart Charm Necklace 1/4 ct tw Sterling Silver 18"New

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

Family & Mother's Birthstone Heart Necklace 18" (2-4 Stones and Lines)
Personalized

Mother & Child Heart-Shaped Birthstone Necklace (1 Stone)
Personalized

Mom + Me Heart-Shaped Lab-Grown Diamond Double Circle Necklace 3/8 ct tw 10K Yellow Gold 18"
New

Rocksbox Lab-Grown Diamond Charm & Heart Necklace 1/15 ct tw 24K Yellow Gold Vermeil Sterling Silver 19"
New

Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Heart Necklace 1-1/3 ct tw 14K White Gold 18"
New

KAY Lab-Grown Diamond Accent Slanted Heart Disc Necklace Sterling Silver
Online Exclusive

KAY Lab-Grown Diamonds 3-Stone Slanted Heart Necklace 1/20 ct tw Sterling Silver
Online Exclusive

KAY Lab-Grown Diamonds Heart & "Mini" Charms Necklace 1/4 ct tw 10K Yellow Gold
New

KAY Lab-Grown Diamonds Scatter Heart & "Mom" Charms Necklace 1/3 ct tw 10K Yellow Gold
New

KAY Lab-Grown Diamonds Cross Heart Charm Necklace 1/3 ct tw 18K Yellow Gold-Plated Sterling Silver 18"
New

KAY Lab-Grown Diamond Accent Slanted Freeform Open Heart Necklace Sterling Silver
Online Exclusive

Disney Treasures Winnie the Pooh "Piglet" Lab-Grown Diamond Heart Necklace 1/20 ct tw Sterling Silver & 18K Rose Gold Vermeil 18"
New

KAY Lab-Grown Diamonds Heart Halo Necklace 1/4 ct tw 10K Yellow Gold 18"
Online Exclusive

KAY Lab-Grown Diamonds Tilted Heart Necklace 1/10 ct tw 10K Yellow Gold 18"
Online Exclusive

KAY Lab-Grown Diamond Accent Open Heart Necklace Sterling Silver
Online Exclusive

STUDIO BY KAY Lab-Grown Diamond 1/4 ct tw Hearts Rondelle Charm 24K Yellow Gold Vermeil Sterling Silver
New

KAY Lab-Grown Diamonds Heart Frame Necklace 1/4 ct tw 10K White Gold 18"
Online Exclusive

KAY Lab-Grown Diamonds Heart Necklace 1/20 ct tw Sterling Silver
Online Exclusive

KAY Lab-Grown Diamonds Double Heart Necklace 1/10 ct tw Sterling Silver 18"
Online Exclusive

KAY Lab-Grown Diamonds Open Heart Necklace 1 ct tw 10K White Gold 18"
Online Exclusive

KAY Lab-Grown Diamonds Double Heart Lariat Necklace 1/6 ct tw 18K Yellow Gold-Plated Sterling Silver 18"
Online Exclusive

KAY Lab-Grown Diamonds Heart Necklace 1/2 ct tw 14K Yellow Gold-Plated Sterling Silver 18"
Online Exclusive

KAY Lab-Grown Diamonds Heart-Shaped Necklace 1/2 ct tw 10K Yellow Gold 18"
Online Exclusive

KAY Lab-Grown Diamonds Double Tilted Heart Necklace 1/15 ct tw Sterling Silver 18"
Online Exclusive

KAY Lab-Grown Diamonds Interlocking Hearts Necklace 1/4 ct tw Sterling Silver & 10K Rose Gold 18"
Online Exclusive

KAY Lab-Grown Diamonds Heart-Shaped Half-Bow Necklace 1/6 ct tw 10K Yellow Gold 18"
Online Exclusive

KAY Lab-Grown Diamonds Double Heart Necklace 1/4 ct tw 10K Yellow Gold 18"
Online Exclusive

KAY Lab-Grown Diamonds Intertwined Double Heart Necklace 1/4 ct tw 10K Yellow Gold18"
Online Exclusive

Disney Treasures Winnie the Pooh Lab-Grown Diamond Heart Drop Necklace 1/8 ct tw 24K Yellow Gold Vermeil Sterling Silver 18"
New

KAY Lab-Grown Diamonds Heart Lariat Necklace 1/5 ct tw Sterling Silver 18"
Online Exclusive

KAY Lab-Grown Diamonds Heart Multi-Stone Double Halo Necklace 3/4 ct tw Sterling Silver 18"
Online Exclusive

Monique Lhuillier Bliss Lab-Grown Diamond Heart Necklace 1/2 ct tw Platinum-Plated Sterling Silver 18"
New

KAY Lab-Grown Diamonds Heart Necklace 1/10 ct tw 10K Yellow Gold 18"
New

STUDIO BY KAY Lab-Grown Diamond Pavé Hearts Rondelle Charm 1/6 ct tw 24K Yellow Gold Vermeil Sterling Silver
New

KAY Lab-Grown Diamonds Cross Heart Charm Necklace 1/4 ct tw Sterling Silver 18"
New