This is an authentic TIFFANY Rubedo 1837 Circle Pendant Necklace. The necklace is crafted of Tiffany's signature Rubedo metal and features a delicate chain holding a large metal circle pendant engraved with the 1837 logo motif. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.