Magnificent 22.30 carats Marquise-shaped Diamond ring, Harry Winston, circa 1975

Claw-set with a marquise-shaped diamond weighing 22.30 carats, between trapeze diamond shoulders, mounted in platinum, size 53, unsigned. Accompanied by GIA report no. 1102517508 stating that the diamond is D Colour, VVS1 Clarity. Estimate Upon Request

Sotheby's. Magnificent Jewels and Noble Jewels And A Celebration of Taste and , Magnificent Jewels from a Private Collection. 12 May 09. Geneva www.sothebys.com photo courtesy Sotheby's