Ross-Simons - 2.07 ct. t. w. Moissanite Heart Necklace in Sterling Silver. 18". Fall in love with this glamorous heart necklace! Presenting a glittery 1.00 carat heart-shaped moissanite haloed by 1.07 ct. t. w. moissanite rounds that continue up the cable chain in eight sparkling stations. Set in polished sterling silver. Includes a 2" extender. Springring clasp, moissanite heart necklace.