Item #: 299959 This is an authentic DAVID YURMAN Sterling Silver Diamond Black Onyx Necklace. This stunning collar necklace is crafted of sterling silver and features a black onyx with diamonds. This is a beautiful necklace with a one of a kind style, 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.