This is an authentic TIFFANY 18K Yellow Gold Diamond Modern Keys Ring 49 5. The ring is crafted of 18 karat yellow gold and features a wrap around key design and a T motif pave-set with round brilliant cut diamonds, approximately .03 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.