A pair of exceptional 13.56 and 12.91 carats Colombian emerald and diamond earrings. Estimate CHF2,400,000 – CHF2,900,000  ($2,462,693 - $2,975,754). Photo Christie's Image Ltd 2015.

Each octagonal step-cut emerald, weighing approximately 13.56 and 12.91 carats respectively, suspended from circular-cut diamond connecting links and square-cut diamond surmounts, weighing approximately 1.84 and 1.81 carats, 3.0 cm, mounted in platinum and gold

Accompanied by report and Premium Appendix no. 75378 dated 24 June 2014 from the SSEF Swiss Gemmological Institute stating that the origin of the emeralds is Colombia, with no indications of clarity modification, and an Appendix on 'Exceptional Pair of Emeralds' indicating that '...the combination of their attractive saturated green colour and fine purity make them an outstandingly matching pair of emeralds'.

Report no. 12085116/1 and 2 dated 31 August 2012 from the Gübelin GemLab stating that the origin of the emeralds is Colombia, with no indications of clarity enhancement.

Report no. 7196936665 dated 4 May 2015 from the GIA Gemological Institute of America stating that the 1.84 carat diamond is G colour, VVS2 clarity.

Report no. 6195903481 dated 30 April 2015 from the GIA Gemological Institute of America stating that the 1.81 carat diamond is G colour, VS1 clarity. 

CHRISTIE'S. GENEVA MAGNIFICENT JEWELS, 10 November 2015, Geneva