This is an authentic TIFFANY & CO 18K White Gold and Diamond Crown Key Pendant Necklace. This stylish necklace is composed of an 18 karat withe gold chain and key-shaped pendant set with 0.25 carats of brilliant pave diamonds. Indulge in this lovely necklace with the timeless style of Tiffany & Co! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.