The Pride of Burma. An exceptional 6.25 carats Burmese ruby and diamond ring. Estimate CHF1,800,000 – CHF2,500,000 ($1,893,168 - $2,629,400). Photo Christie's Image Ltd 2015

Set with a cushion-shaped ruby, weighing approximately 6.25 carats, in a micro-pavé diamond surround, to the brilliant-cut diamond cluster, mounted in platinum, ring size 5¾ 

Accompanied by report no. CS 58693 dated 13 November 2014 from the AGL American Gemological Laboratories stating that the ruby is of Burmese origin, with no indications of heating, and a Jewel Folio mentioning the outstanding quality of the 'Pride of Burma' 

Christie's. GENEVA MAGNIFICENT JEWELS, 13 May 2015, Geneva