Moissanite Diamond Necklace. Featuring a 4mm moissanite diamond set in a sterling silver base. This timeless piece is not only incredibly beautiful, but also unique. The necklace comes with a 16 inch silver chain and is finished with a secure lobster claw clasp. Crafted with all new materials, this necklace is a perfect addition to any jewelry collection and makes for a great gift for a loved one or as a special treat for yourself. Make a statement with this elegant and sophisticated GRA Certified Moissanite Diamond Necklace.