A pair of emerald and diamond ear clips, by Van Cleef & Arpels. Photo Christie's Image Ltd 2014

Each centering upon a pear-shaped emerald with a brilliant-cut diamond surround, to the hinged suspension hoop at the base to potentially suspend a pendant, 2.7 cm, with French assay marks for platinum and gold. Signed and with maker's mark for Van Cleef & Arpels, no. 11820 cs. Estimate CHF40,000 – CHF50,000 ($45,622 - $57,027)

Accompanied by report no. 66910 dated 25 February 2013 from the SSEF Swiss Gemmological Institute stating that the emeralds are of Colombian origin, with indications of minor amount of oil

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