8 mai 2018
Fine emerald and diamond ring
Lot 352. Fine 13.70 carats Colombian emerald and diamond ring. Estimate 400,000 — 600,000 CHF . © Sotheby's 2018. Claw-set with a step-cut emerald weighing 13.70 carats, between shoulders set with shield-shaped diamonds, size 49, numbered, maker's mark,...