This is an authentic TIFFANY 18K Yellow Gold Diamond Crown Key Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a delicate chain attached to a key pendant with sparkling pave set round brilliant cut diamonds, approximately .13 total carat weight. This is a beautiful necklace with the timeless style of Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.