This lecture, given by the author of Cartier 1900-1939, the catalogue of the British Museum's exhibition shown in 1997, which she also organised, reveals not only the genius behind Cartier's luxurious jewels, but also the firm’s celebrity clientele, from the royal heads of Europe to Indian maharajahs, American heiresses and stars of film and stage. In the course of preparing the exhibition catalogue, the speaker had unparalled access to the Cartier firm's private archive: you will hear about the histories of famous jewels, you will see stunning historic displays with fashions to match, and understand why Cartier is unrivalled in their brilliance of conception and craftsmanship.