A pair of emerald and diamond earrings, by Chatila. Photo Christie's Image Ltd 2014

Each oval-shaped diamond top suspending a pear-shaped emerald, weighing approximately 12.34 and 10.82 carats, mounted in gold, 3.3 cm, in brown velvet Chatila pouch. Signed Chatila. Estimate CHF90,000 – CHF180,000 ($103,266 - $206,531)

Accompanied by report no. 71774 dated 12 December 2013 from the SSEF Swiss Gemmological Institute stating that both emeralds are of Colombian origin, with indications of moderate amount of artificial resin

Reports nos. 12055280 and 12055281 dated 11 May 2012 from the Gübelin GemLab stating that the 12.34 and 10.82 carat emeralds are of Colombian origin, with indications of minor clarity enhancement

Christie's. GENEVA MAGNIFICENT JEWELS. 14 May 2014, Geneva -http://www.christies.com/