The emerald and diamond 'Salma' pendant on a diamond chain, by Van Cleef and Arpels. Photo Christie's Image Ltd 2014

The emerald drop, weighing approximately 36.25 carats, set with a pavé-set diamond cap and marquise-shaped diamond surmount, weighing approximately 2.38 carats, to the detachable spectacle-set diamond chain, mounted in platinum and gold, 2007, 43.5 cm, in a navy blue leather Van Cleef & Arpels case All signed VCA, pendant with maker’s mark for Van Cleef & Arpels, nos. ML4959 (pendant) and BL142109 (chain) – Estimate: CHF400,000 – CHF600,000 ($453,477 – $680,216)

Accompanied by report no. 46502 dated 11 May 2006 from the SSEF Swiss Gemmological Institute stating that the emerald is of Colombian origin, with indications of moderate amount of oil

Please refer to the department for the updated report from the SSEF Swiss Gemmological Institute

Duplicate report no. 14293800 originally dated 5 April 2005 from the GIA Gemological Institute of America stating that the 2.38 carat diamond is E colour, VVS2 clarity

Christie's. GENEVA MAGNIFICENT JEWELS.14 May 2014. Geneva