This is an authentic TIFFANY & CO Sterling Silver 1837 Circle Pendant Necklace. This stunning necklace has a collar neck chain and a ring engraved with the name logo Tiffany & Co in sterling silver. 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.