An important 21.52 carats Type IIa fancy brown-pink pear brilliant-cut diamond ring. Estimate €1,450,000 – CHF1,900,000 ($1,460,584 - $1,913,869). Photo Christie's Image Ltd 2015

Set with a fancy brown-pink pear brilliant-cut diamond, weighing approximately 21.52 carats, to the baguette-cut diamond shoulders, ring size 6½, mounted in gold

Accompanied by report no. 2173247750 dated 23 July 2015 from the GIA Gemological Institute of America stating that the diamond is Fancy Brown-Pink colour, VVS2 clarity, and a Diamond Type Classification letter stating that the diamond has been determined to be Type IIa. 

Christie's. GENEVA MAGNIFICENT JEWELS, 10 November 2015, Geneva