This is an authentic TIFFANY 18K White Gold Diamond Mini Heart Key Charm Pendant Link Necklace. The necklace is crafted of 18 karat white gold and features a link chain and a heart motif key pendant set with round brilliant cut diamonds, approximately .05 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.