18 avril 2016
A magnificent 15.52 carats step-cut Type IIa diamond single-stone ring, by Harry Winston, circa 1973
Lot 132. A magnificent 15.52 carats step-cut Type IIa diamond single-stone ring, by Harry Winston, circa 1973. Estimate £700,000 - 900,000 (€880,000 - 1.1 million). Photo Bonhams. The step-cut diamond, weighing 15.52 carats, between tapered baguette-cut...