Item #: 1625511 This is an authentic TIFFANY 18K Rose Gold Diamond Black Onyx Small T Circle Pendant Necklace. The necklace is crafted of 18 karat rose gold and features a T motif circle pendant set with a black onyx and diamonds, approximately .03 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.