THE PROPERTY OF A GENTLEMAN
AN IMPORTANT SAPPHIRE AND DIAMOND BROOCH, BY MELLERIO
Centering upon an octagonal-cut sapphire, weighing approximately 47.15 carats, in an old-mine cut diamond frame, to the baguette, single and brilliant-cut diamond ribbon detail, 5.3 cm, with French assay marks for platinum and gold
Signed and with maker's mark for Mellerio, no. 17838
Accompanied by report no. 61461 dated 5 December 2011 from the SSEF Swiss Gemmological Institute stating that the sapphire is of Burmese origin, with no indications of heating
Report no. 12030102 dated 20 March 2012 from the Gübelin GemLab stating that the sapphire is of Burmese origin, with no indications of heating, and that the colour variety of the sapphire may also be called 'Royal Blue'