Lot 189. A Magnificent Unmounted Type IIA Diamond, weighing approximately 75.97 carats. Estimate CHF12,300,000 – CHF14,000,000 ($13,969,345 - $15,900,067). Price realised CHF 13,045,000. Photo Christie's Image Ltd 2014

The pear-shaped diamond weighing approximately 75.97 carats, in black leather fitted case. 

Accompanied by report no. 1132131165 dated 22 January 2014 from the GIA Gemological Institute of America stating that the diamond is D colour, Flawless clarity, and a Diamond Type Classification letter stating that the diamond is Type IIA

Christie's. GENEVA MAGNIFICENT JEWELS.14 May 2014. Geneva