28 avril 2016
Impressive unmounted 52.32 carats octagonal step-cut Colombian emerald
Lot 335A. Impressive unmounted 52.32 carats octagonal step-cut Colombian emerald. Estimate 1,440,000 — 2,400,000 CHF (1,316,039 - 2,193,398 EUR). Photo Sotheby's The octagonal step-cut emerald weighing 52.32 carats, fitted case. Accompanied by Gübelin...