This pretty lab-grown diamond charm necklace creates a modern and symbolic look. 18k yellow gold-plated sterling silver two teardrop-framed charms sparkle with a round-cut lab-grown diamonds, artfully set to enhance size and sparkle two heart-shaped charms are traced in shimmering round-cut lab-grown diamonds, with an additional lab-grown diamond at each center a round lab-grown diamond-embellished cross suspends at the center total lab-grown diamond weight is 1/3 carat 18-inch paperclip chain; lobster clasp from the kay lab-grown diamonds collection