Widely known as one of the world’s most iconic jewelry brands, Tiffany & Co dates back as far as 1837. In 1886, Tiffany & Co. introduced the concept of the diamond engagement ring as we know it today. Over time, Tiffany & Co. became synonymous with the lavish lifestyles of the Gilded Age and later evolved to become an integral part of pop culture.  Discover our collection of authentic pre-owned Tiffany jewelry here.