Important Emerald-cut Diamond ring, Harry Winston

Important Diamond ring, Harry Winston. photo courtesy Sotheby's

The emerald-cut diamond weighing 20.18 carats, set between tapered baguette diamond shoulders, mounted in platinum, signed Winston and numbered, maker's marks, size 48, with ring sizer, engraved: 1937-1962. Est.1,000,000—1,600,000  CHF. Lot Sold 2,434,500 CHF

Accompanied by GIA report no. 2125360932 stating that the diamond is D Colour, VS2 Clarity.

Sotheby's. Magnificent Jewels, 16 Nov 10, Geneva www.sothebys.com