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Platinum and Diamond Bangle-Bracelet-Brooch Combination, Oscar Heyman & Brothers, 1956. Photo Sotheby's

Of hinged design, the central star motif centered by a round diamond weighing approximately 3.55 carats, accented by 12 smaller round diamonds weighing approximately 9.75 carats, the brooch and bangle-bracelet further accented by numerous square, baguette, and round diamonds weighing approximately 26.00 carats, internal circumference 7 inches, signed, numbered 99290, with maker's marks; the removable brooch is fitted with a loop as to be worn as a pendant. Estimation: 125,000 - 175,000 USD

Sotheby's. Important Jewels. New York | 20 sept. 2012 www.sothebys.com