This is an authentic DAVID YURMAN Sterling Silver Diamond Amethyst 11mm Chatelaine Necklace. This stunning necklace is composed of a sterling silver box chain that holds an 11mm purple amethyst stone in a cable accented square setting with diamond prongs, weighing approximately .03 carats. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.