Rare hardcover catalog for a sale of the Magnificent Jewels of Madame Helene Beaumont, held at Sotheby's in Geneva, Switzerland, in Italy on May 18, 1994. 94 exquisite jewels were offered, all depicted in color and fully annotated: jewelry by Bulgari, Cartier, Suzanne Belperron, Piaget, Movado, Faraone, Lalounis, Janesich, Seaman Shepps, Flato, Tiffany, and Van Cleef & Arpels, and including a ring cut from the South African Jonker diamond, at the time of its discover in 1934 the fourth largest diamond of gem quality ever to be found. Hardcover with dust jacket, 104 pages, 11" by 8.5". Vintage photo of Helena Beaumont by Madame d'Ora of Paris reproduced on back cover of dust jacket (photo on front panel by Lartigue?). Important catalog on fine jewels of the 20th century, much rarer than the Duchess of Windsor jewelry catalog.