Item #: 140236 This is an authentic TIFFANY & CO 18k Yellow Gold Mini Heart Key Pendant Necklace. This charming 28mm pendant is 18 karat gold 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.