Item #: 61777 This is an authentic TIFFANY & CO 18k Gold Elsa Peretti Rock Crystal Open Heart Necklace. This stunning necklace is collar length and 18 karat gold and features a lovely stylized open heart in transparent rock crystal by artis Elsa Peretti. This is a marvelous, limited edition necklace, with a one of a kind look, from Tiffany & Co! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.