This is an authentic TIFFANY 18K Rose Gold Diamond Victoria Vine Circle Key Pendant Necklace. The necklace is crafted of 18 karat rose gold and features a vine key motif set with marquise and round brilliant cut diamonds, approximately .44 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.