Item #: 25804 This is an authentic TIFFANY & CO 18k Gold Jade Open Heart Elsa Peretti Necklace. This lovely necklace has an 18 karat gold chain with a stylized heart in green jade. This is a marvelous necklace for a distinctive look from Tiffany & Co. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.