Item #: 1038233 This is an authentic TIFFANY 18K Yellow Gold Return to Tiffany Heart Lock Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a heart motif pendant engraved with the Return to Tiffany logo. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.