8 mai 2018
Fancy brown-yellow diamond ring
Lot 343. Fancy brown-yellow diamond ring, weighing 25.78 carats. Estimate 230,000 — 420,000 CHF. © Sotheby's 2018. The step-cut fancy brown-yellow diamond weighing 25.78 carats, between tapered baguette diamond shoulders , size 49, maker's mark for Gübelin....