A Pair of Emerald and Diamond Ear Pendants. Photo Christie's Image Ltd 2012

Each set with a cushion-cut emerald, weighing approximately 7.70 and 7.03 carats, to the circular-cut diamond surround and gallery, joined by an old mine-cut diamond, weighing approximately 1.74 and 1.71 carats, to the circular-cut diamond French wire, mounted in platinum. Estimate $400,000 - $600,000

With reports 12011023 and 12011024 dated 18 January 2012 from Güblein Gem Lab stating that gemmological testing revealed characteristics consistent with those of emeralds originating from Colombia. Indications of minor clarity enhancement

With reports 1132495594 and 2135060045 dated 7 June and 18 February 2011 from the Gemological Institute of America stating that the diamonds, weighing approximately 1.71 and 1.74 carats, are G color, VVS2 and VS1 clarity respectively 

Christie's. Magnificent Jewels. 16 October 2012. New York, Rockefeller Plaza