Item #: 549613 This is an authentic TIFFANY 18K Yellow Gold Return To Tiffany Round Key Pendant Necklace. This charming necklace is crafted of an 18 karat yellow gold chain holding a round key pendant for a classic style, only from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.