Important Pair of Platinum, 12.16 and 10.18 carats Colombian Emerald and Diamond Pendant-Earclips, Harry Winston. Estimate 650,000 — 750,000 USD. Photo: Sotheby's.

Supporting two emerald-cut emeralds weighing 12.16 and 10.18 carats, with cluster-style tops set with round, pear and marquise-shaped diamonds weighing approximately 13.65 carats, signed HW; pendants detachable.

Accompanied by AGL report no. CS 48875 A and B stating that the emeralds are of Colombian origin, clarity enhancement: minor, type: oil. Together with a letter from the AGL describing the rarity and quality of Colombian emeralds, in addition to noting that the two present emeralds received an Excellent Match Pair Rating, which, '..is the highest ranking and defines a matched pair of gemstones that is rare to achieve and reflects a high level of exclusivity.'

Accompanied by an AGL JewelFolio. 

Sotheby's. Important Jewels, New York, 24 Sep 2015