This lab-grown diamond necklace from the unstoppable love collection is a classical style she'll wear every day. 10k white gold the center features a round-cut lab-grown diamond that continuously moves and catches light from every angle a halo of more round-cut lab-grown diamonds finishes the shimmering look total lab-grown diamond weight is 2 carats independently certified 17- to 19-inch adjustable curb chain; lobster clasp