This is an authentic DAVID YURMAN Sterling Silver Diamond Amethyst 20mm Chatelaine Necklace. This stunning necklace is made of sterling silver with a square faceted amethyst. The prongs are embedded with diamonds totaling a carat weight of approximately .20. This is a look of distinction only from David Yurman! Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.