Court jewellers Carrington & Company, founded in 1780, was first established in London’s Regent Street. With Royal Warrants from Queen Victoria, Prince Albert, Edward VII, George V, as well as Nicholas I and II and Queen Alexandra of Russia, Carrington & Company has established true regal connections. Carrington’s collections were also retailed by Tiffany & Co and Cartier. Source: Hancocks page with Biographies.
Old advertissements from Carrington, as found at Grace’s Guide; the leading source of historical information on industry and manufacturing in Britain.