Lot 1801. Impressive and fine pair of 10.73 and 9.52 carats Colombian emerald and diamond pendent earrings. Estimate 13,500,000 — 16,000,000 HKD. Lot sold 15,220,000 HKD. Photo Sotheby's 2011

Each suspending on a cushion-shaped emerald weighing 10.73 and 9.52 carats respectively, framed by old mine-cut diamonds altogether weighing approximately 3.60 carats, each surmounted by a cushion-shaped diamond weighing 3.01 carats, mounted in platinum. 

Accompanied by Gübelin reports numbered 1012096 and 1012097, and AGL report numbered CS43608 A and B, stating that the 10.73 and 9.52 carat emeralds are natural, of Colombian origin, with no indication of clarity enhancement; also accompanied by a separate AGL JewelFolio, stating that "such a well matched pair of Colombian emeralds possessing such a combination of attributes as superior colour, uncommon clarity and well-proportioned cut, is extremely rare". Further accompanied by GIA reports numbered 5101872696 and 2105772461, dated 9 December 2010, stating that the 3.01 and 3.01 carat diamonds are G colour, VS2 and VVS2 clarity respectively.

Sotheby's. Jewels and Jadeite, Hong Kong, 06 Apr 2011.