2 août 2016
Fine sapphire and diamond ring, Koenig Design
Lot 530. Fine 14.19 carats Kashmir sapphire and diamond ring, Koenig Design. Estimate 300,000 — 500,000 CHF. Lot sold 914,500 CHF. Photo: Sotheby's 2012 Set at the centre with a sugarloaf cabochon sapphire weighing 14.19 carats, to an open work mount...