Tiffany & Co. (colloquially known as Tiffany’s) is an American luxury jewellery and specialty design house headquartered on Fifth Avenue in Manhattan. Tiffany is known for its luxury goods, particularly its sterling silver and diamond jewellery. These goods are sold at Tiffany stores, online, and through corporate merchandising. Its name and branding are licensed to Coty for fragrances and to Luxottica for eyewear.