This is an authentic TIFFANY 18K Rose Gold Diamond Atlas X Closed Wide Ring 54 7. The ring is crafted of 18 karat rose gold and features a knife edge band with Roman numeral motifs set with round cut diamonds, weighing approximately .20 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.