This is an authentic DAVID YURMAN Sterling Silver Diamond Black Onyx 16mm Wheaton Ring Size 56 or 7.5. This sterling silver ring features a twisted cord style band with four individual strands meeting at the central cut black onyx stone surrounded by pave diamonds. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.