Item #: 1146305 This is an authentic TIFFANY 18K Yellow Gold Diamond Extra Mini Heart Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a diamond heart motif pendant weighing approximately .10 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.