An impressive diamond brooch. Photo Christie's Image Ltd 2013

Designed as a flower centering upon a rectangular-cut diamond, weighing approximately 9.71 carats, with pear-shaped diamond petals, to the vari-cut diamond stem, mounted in platinum and gold, 7.5 cm. Estimate CHF680,000 – CHF950,000

Accompanied by report no. 5151128519 dated 14 December 2012 from the GIA Gemological Institute of America stating that the 9.71 carat rectangular-cut diamond is D colour, Internally Flawless clarity, and a Diamond Type Classification letter indicating that the diamond is Type IIa

Report no. 1152227523 dated 13 February 2013 from the GIA Gemological Institute of America stating that the 3.01 carat heart-shaped diamond is D colour, Internally Flawless clarity

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