With a stunning silhouette, this luxe lab-grown diamond necklace is an ideal evening look. Sterling silver with 24k yellow gold vermeil the pendant sparkles with a row of round-cut lab-grown diamonds one marquise-cut lab-grown diamond tops the pear-shaped lab-grown diamond dangle total lab-grown diamond weight is 3/4 carat independently certified 16- to 18-inch adjustable cable chain; lobster clasp from the monique lhuillier bliss collection, available exclusively at kay