Lot 551. Emerald and diamond necklace. Estimate 420,000 — 610,000 CHF. Lot sold 494,500 CHF. Photo: Sotheby's 2012

Of fringe design, set with step-cut emeralds and brilliant-cut diamonds, length approximately 380mm, five pendants detachable, French assay marks.

Accompanied by Gübelin report no. 12070070, no. 12070071, and no. 12070072, stating that the three largest emeralds are of Colombian origin, with indications of minor clarity enhancement.

Sotheby's. Magnificent Jewels, Geneva, 14 Nov 2012