This is an authentic TIFFANY & CO Sterling Silver 1837 Circle Pendant Necklace. This stunning necklace has an 18 inch sterling silver chain featuring a ring engraved with the Tiffany & Co. 1837 logo. This is a simple necklace with a distinctive look, only from Tiffany & Co.! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.