This is an authentic TIFFANY Sterling Silver 1837 Circle Clasp Necklace. This necklace is crafted of sterling silver and features two interlocking circles and the "T&CO 1873" logo. This is a classic necklace with a distinctive look from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.