A Pair of Cushion-Cut Colombian Emerald Ear Pendants. Photo: Christie's Images Ltd 2012

Each suspending a cushion-cut emerald, weighing approximately 10.63 and 9.70 carats, from a cushion-cut diamond, weighing approximately 3.02 and 3.01 carats, to the French wire, mounted in platinum; Lot 96. Estimate $400,000 - $600,000

With reports 11085147 and 11085148 dated 2 September 2011 from Gübelin Gem Lab stating that gemmological testing of the emeralds, weighing approximately 10.63 and 9.70 carats, revealed characteristics consistent with those of emeralds originating from Colombia. Indications of insignificant and minor clarity enhancement, respectively

With reports CS 45770 and CS 45771 dated 11 August 2011 from the American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of the emeralds would be classified as Colombia. Faint clarity enhancement 

“Absolutely stunning. Emeralds of Colombian origin are the most coveted by collectors, and this pair is exceptionally well-matched.” – Rahul Kadakia, Head of Jewelry Department

Christie's. New York Important Jewels. 12 June 2012. New York, Rockefeller Plaza