Item #: 745775 This is an authentic TIFFANY 18K Rose Gold Diamond Atlas Key Pendant. The necklace is crafted of 18 karat rose gold and features Roman numeral cutout motif with a halo of sparkling diamonds, approximately .04 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.