19 juin 2017
Burma sapphire and diamond ring
Lot 2180. 15.07 carat Burma sapphire and diamond ring. Estimate CHF 60 000 / 80 000 (€ 55 560 / 74 070) . © Koller Auctions Platinum 950, 15g. Set with 1 Burma sapphire of 15.07 ct, not heated, surrounded by brilliant-cut diamonds weighing ca. 1.60 ct....