This is an authentic TIFFANY 18K Yellow Gold Diamond Crown Key Pendant Necklace. This stylish piece consists of a 18 karat yellow gold key pendant detailed with pave diamonds weighing approximately .13 total carat weight. Indulge in this lovely 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.