This is an authentic TIFFANY 18K Yellow Gold Diamond Metro Heart Pendant Necklace. This necklace is crafted of 18 karat yellow gold and a heart shaped pendant that is lined with diamonds. This is a radiant necklace with the classic style only from Tiffany & Co! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.