The dazzling 84-carat jewel - which took two years to cut - was bought by Guess? clothing company founder Georges Marciano at a Sotheby's auction in Geneva.
Likened in size to a quail's egg, it was mined in Africa and the rough diamond from which it was cut was the size of a man's palm. In addition to its extraordinary carat weight, the diamond has received the highest possible grading.
Described as "pure perfection" by auction house Sotheby's, the gem is D-colour, or finest white, has flawless clarity and its cut, polish and symmetry are classed as excellent.
The diamond, which was showcased in London, Hong Kong, Paris, New York, Rome, Los Angeles, Dubai and Bahrain, was the last of 387 lots to be auctioned in Sotheby's "Magnificent Jewels" sale. Link