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Lab-Grown Diamond Necklaces
Explore KAY's lab-grown diamond necklaces, combining timeless beauty with sustainability. Shop solitaire styles, unique pendants, and more sparkling lab-created diamond styles.
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$2,099.99 (30% off)$2,999.99 -
![Unstoppable Love Lab-Created Diamond Marquise Frame Necklace 1 ct tw 10K Yellow Gold 19"](/productimages/processed/V-622399309_0_260.jpg?pristine=true "Unstoppable Love Lab-Created Diamond Marquise Frame Necklace 1 ct tw 10K Yellow Gold 19"")
$1,399.99 (30% off)$1,999.99
![Unstoppable Love Lab-Created Diamond Oval Frame Necklace 1 ct tw 10K White Gold 19"](/productimages/processed/V-455772107_0_260.jpg?pristine=true "Unstoppable Love Lab-Created Diamond Oval Frame Necklace 1 ct tw 10K White Gold 19"")
![Unstoppable Love Lab-Created Diamond Necklace 1-1/2 ct tw 10K White Gold 19"](/productimages/processed/V-581436906_0_260.jpg?pristine=true "Unstoppable Love Lab-Created Diamond Necklace 1-1/2 ct tw 10K White Gold 19"")
![Toi et Moi Emerald-Cut & Pear-Shaped Necklace 1 ct tw 14K White Gold 18"](/productimages/processed/V-981508803_0_260.jpg?pristine=true "Toi et Moi Emerald-Cut & Pear-Shaped Necklace 1 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Marquise & Round-Cut Cross Necklace 3/4 ct tw 10K White Gold 18"](/productimages/processed/V-788201705_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Marquise & Round-Cut Cross Necklace 3/4 ct tw 10K White Gold 18"")
![Lab-Created Diamonds by KAY Marquise & Round-Cut Cross Necklace 3/4 ct tw 10K Yellow Gold 18"](/productimages/processed/V-660800400_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Marquise & Round-Cut Cross Necklace 3/4 ct tw 10K Yellow Gold 18"")
![Lab-Created Diamonds by KAY Pear-Shaped & Round-Cut Teardrop Necklace 1/2 ct tw 10K White Gold 18"](/productimages/processed/V-751361508_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Pear-Shaped & Round-Cut Teardrop Necklace 1/2 ct tw 10K White Gold 18"")
![Men's Lab-Created Diamonds by KAY Tennis Necklace 8 ct tw 10K White Gold 20"](/productimages/processed/V-182913905_0_260.jpg?pristine=true "Men's Lab-Created Diamonds by KAY Tennis Necklace 8 ct tw 10K White Gold 20"")
![Unstoppable Love Lab-Created Diamond Double Heart Necklace 1/2 ct tw 10K Two-Tone Gold 18"](/productimages/processed/V-900287006_0_260.jpg?pristine=true "Unstoppable Love Lab-Created Diamond Double Heart Necklace 1/2 ct tw 10K Two-Tone Gold 18"")
![Lab-Created Diamonds by KAY Necklace 1-1/4 ct tw 14K White Gold 18"](/productimages/processed/V-174094401_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Necklace 1-1/4 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Necklace 1 ct tw 14K White Gold 18"](/productimages/processed/V-580880108_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Necklace 1 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Heart Necklace 1-1/2 ct tw Round-Cut 14K White Gold 18"](/productimages/processed/V-581004809_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Heart Necklace 1-1/2 ct tw Round-Cut 14K White Gold 18"")
![Lab-Created Diamonds by KAY Riviera Necklace 10 ct tw 14K White Gold 16"](/productimages/processed/V-174614204_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Riviera Necklace 10 ct tw 14K White Gold 16"")
![Lab-Created Diamonds by KAY Circle Halo Necklace 1/2 ct tw 10K White Gold 18"](/productimages/processed/V-723359206_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Circle Halo Necklace 1/2 ct tw 10K White Gold 18"")
![Lab-Created Diamonds by KAY Cross Necklace 1/2 ct tw 14K White Gold 18"](/productimages/processed/V-533830408_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Cross Necklace 1/2 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Multi-Stone Necklace 3/4 ct tw 10K White Gold 18"](/productimages/processed/V-491541506_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Multi-Stone Necklace 3/4 ct tw 10K White Gold 18"")
![Lab-Created Diamonds by KAY Oval-Cut Halo Necklace 1/2 ct tw 10K Rose Gold 18"](/productimages/processed/V-581461605_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Oval-Cut Halo Necklace 1/2 ct tw 10K Rose Gold 18"")
![Lab-Created Diamonds by KAY Cross Necklace 1/2 ct tw 14K Yellow Gold 18"](/productimages/processed/V-580951200_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Cross Necklace 1/2 ct tw 14K Yellow Gold 18"")
![Unstoppable Love Lab-Created Diamond Necklace 1 ct tw 14K Yellow Gold 19"](/productimages/processed/V-431912308_0_260.jpg?pristine=true "Unstoppable Love Lab-Created Diamond Necklace 1 ct tw 14K Yellow Gold 19"")
![Lab-Created Diamonds by KAY Riviera Necklace 5 ct tw 10K White Gold 17"](/productimages/processed/V-762187805_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Riviera Necklace 5 ct tw 10K White Gold 17"")
![Lab-Created Diamonds by KAY Graduated Three-Stone Necklace 3/4 ct tw 14K White Gold 18"](/productimages/processed/V-101351308_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Graduated Three-Stone Necklace 3/4 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Necklace 1/2 ct tw 14K White Gold 19"](/productimages/processed/V-174094502_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Necklace 1/2 ct tw 14K White Gold 19"")
![Lab-Created Diamonds by KAY Heart Necklace 1 ct tw 14K White Gold 18"](/productimages/processed/V-174174704_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Heart Necklace 1 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Double Strand Necklace 5 ct tw 10K White Gold 17"](/productimages/processed/V-393928508_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Double Strand Necklace 5 ct tw 10K White Gold 17"")
![Unstoppable Love Lab-Created Diamond Twist Frame Necklace 1-1/4 ct tw 10K White Gold 19"](/productimages/processed/V-380922409_0_260.jpg?pristine=true "Unstoppable Love Lab-Created Diamond Twist Frame Necklace 1-1/4 ct tw 10K White Gold 19"")
![Lab-Created Diamonds by KAY Graduated Riviera Necklace 7 ct tw 14K White Gold 17.7"](/productimages/processed/V-581479805_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Graduated Riviera Necklace 7 ct tw 14K White Gold 17.7"")
![Lab-Created Diamonds by KAY Necklace 1/2 ct tw 14K White Gold 18" (F/SI2)](/productimages/processed/V-190283109_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Necklace 1/2 ct tw 14K White Gold 18" (F/SI2)")
![Lab-Created Diamonds by KAY Emerald-Cut Sideways Solitaire Necklace 1/2 ct tw 14K Yellow Gold 18"](/productimages/processed/V-190354009_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Emerald-Cut Sideways Solitaire Necklace 1/2 ct tw 14K Yellow Gold 18"")
![Previously Owned Lab-Created Diamonds by KAY Double Strand Necklace 5 ct tw 10K White Gold 17"](/productimages/processed/V-887223509_0_260.jpg?pristine=true "Previously Owned Lab-Created Diamonds by KAY Double Strand Necklace 5 ct tw 10K White Gold 17"")
![Lab-Created Diamonds by KAY Cross Necklace 1/3 ct tw 14K White Gold 18"](/productimages/processed/V-762138903_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Cross Necklace 1/3 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Pear-Shaped Solitaire Necklace 1/2 ct tw 14K White Gold 19" (F/SI2)](/productimages/processed/V-190284000_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Pear-Shaped Solitaire Necklace 1/2 ct tw 14K White Gold 19" (F/SI2)")
![Lab-Created Diamonds by KAY Riviera Necklace 7 ct tw 14K White Gold 16"](/productimages/processed/V-174614305_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Riviera Necklace 7 ct tw 14K White Gold 16"")
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