Tiffany & Co Sterling Silver Heart Tag Necklace 15.5". The piece is in excellent used estate condition and ready to wear. It is NO engraved or monogrammed. It does not come with a box or pouch. The piece is signed "Tiffany & Co 925". The necklace measures about 15.5" long, the tag measures about 1.1" x .80" and the entire piece weighs 65.1 grams.