Lot 665. A fine  50.75 carats Colombian emerald and 37.55 carats diamond necklace, circa 1950. Estimate HK$ 1.5 million - 2 million (€180,000 - 240,000). Sold for HK$ 2,680,000 (€ 319,097). Photo: Bonhams.

The articulated necklace set with brilliant and baguette-cut diamonds, suspending seven graduated step-cut emeralds between marquise-cut diamonds, each to a brilliant-cut diamond surmount, diamonds approximately 37.55 carats total, emeralds approximately 50.75 carats total, length 34.0cm

Accompanied by an AGL (American Gemological Laboratories) report stating that the natural emeralds have insignificant to minor indication of clarity enhancement and originate from Colombia. Report number CS 85026, dated 24 September 2015. 

Bonhams. RARE JEWELS & JADEITE, 30 Nov 2015 17:00 HKT - HONG KONG, ADMIRALTY