This is an authentic TIFFANY & CO 18K Rose Gold Mini Key Pendant Necklace. This charming necklace is a 18K rose gold chain with a 18k rose gold pendant in the form of a skeleton key with a heart grip. This is a charming piece with the unforgettable style of Tiffany & Co.! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.