A rare coloured diamond ring. Photo Christie's Image Ltd 2013

Set with a fancy red rectangular-cut diamond, weighing approximately 1.92 carat, flanked on either side with half-moon diamond, to the pavé-set diamond shoulders and platinum hoop, ring size 6. Estimate CHF1,900,000 – CHF2,900,000

Accompanied by report no. 11360842 dated 20 March 2001 from the GIA Gemological Institute of America stating that the diamond is Fancy Red colour, VS2 clarity

Please note that the report is more than 5 years old and might require an update

Christie's. MAGNIFICENT JEWELS. 15 May 2013. Geneva