This is an authentic TIFFANY & CO Sterling Silver Return to Tiffany Heart Necklace. This stylish long necklace is sterling silver and features a silver heart tag engraved Tiffany & Co. This is a marvelous necklace with a distinctive look, from Tiffany & Co. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.