Lot 1861. Colombian Emerald and Diamond Bib Necklace. Estimate 5,000,000 — 6,500,000 HKD. Lot sold 5,840,000 HKD. Photo: Sotheby's.

Of cascading design, set with seventy-two graduated pear-shaped emeralds, linked by lines of brilliant-cut, marquise and pear-shaped diamonds, the emeralds and diamonds together weighing approximately 325.00 and 220.00 carats respectively, mounted in 18 karat white gold, length approximately 395mm.

Accompanied by Gübelin report numbered 15051035, dated 27 May 2015, stating that the emeralds are natural, of Colombian origin, with indications of minor to moderate clarity enhancement.

Sotheby's. Magnificent Jewels & Jadeite, Hong Kong, 07 oct. 2015