2 mai 2017
Diamond and onyx ring, ESG
Lot 231. 4.29 carats Diamond and onyx ring, ESG. Estimate 105,000 — 205,000 CHF . Photo Sotheby's. Collet-set with a cushion-shaped diamond weighing 4.29 carats, within a frame of brilliant-cut diamonds, the mount composed of carved onyx pavé-set with...