A coloured diamond ring, by JAR. photo: Christie's Images Ltd 2012

Set with a fancy intense yellow oval-shaped diamond, weighing approximately 15.75 carats, to the pavé-set diamond thread mount, mounted in platinum. Signed JAR Paris. Lot 26. Estimate CHF370,000 - CHF550,000

Accompanied by report no. 2145351136 dated 19 January 2012 from the GIA Gemological Institute of America stating that the diamond is Fancy Intense Yellow colour, VVS2 clarity

Christie's. Jewels for Hope: The Collection of Mrs Lily Safra 14 May 2012 Geneva