Item #: 1572855 This is an authentic TIFFANY Platinum 18K White Gold Diamond Star Key Pendant Necklace. This necklace is crafted of platinum and features a starburst shape key motif accented with diamonds, weighing approximately .30 total carat weight along an 18 karat white gold chain. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.