From the unstoppable love collection, this gorgeous halo necklace gleams with a center lab-grown diamond that moves and sparkles from every angle—just like your love. 10k white gold the center round-cut lab-grown diamond is artfully set to enhance size and sparkle round-cut lab-grown diamonds adorn the halo frame total lab-grown diamond weight is 1/2 carat 17- to 19-inch adjustable curb chain; lobster clasp