Item #: 685298 This is an authentic TIFFANY 18K Rose Gold Black Onyx 8mm HardWear Ball Ring. The ring is crafted of 18 karat rose gold and features a polished band with a single 8mm polished black onyx stone. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.