Edith Sitwell, Margot Fonteyn, Frank Sinatra, Yul Brynner, Barbra Streisand and Vivienne Westwood are just a few of the luminaries who have visited Wartski's showrooms, lured by a dazzling array of gems, jewellery, goldsmiths' work and the famous Faberg collection. Geoffrey Munn, managing director of Wartski, tells the remarkable story of how the firm rose from humble beginnings in Bangor, North Wales, to become jewellers to six generations...