André Vassort set up his workshop at 34 Rue Sainte Anne, Atelier Vassort. He registered his business and maker’s mark in December 1955. He quickly became one of the most recognised and famous craftsmen of high-quality French jewellery in the mid-20th Century. World renowned jewellery houses such as Van Cleef & Arpels, Boucheron and Mauboussin, trusted him not only with creating their own fine jewels but also gave him special commissions for their clients. Frequently these clients would include Royalty of both the East and West as well as legends of Hollywood. One of his most famous creations is the spectacular emerald, ruby, pearl and diamond crown made on behalf of Van Cleef & Arpels for the coronation of Empress Farah of Iran.