Item #: 604080 This is an authentic TIFFANY 18K Rose Gold Diamond 1837 Circle Pendant Necklace. This necklace features a circular 18 karat rose gold pendant with a single diamond in the center, approximately .05 total carat weight. This is a beautiful necklace for an iconic look from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.