May 15 at Christie’s auction will be put up for sale, pear-shaped diamond, the purity of which is unparalleled in the world. It is known that on a scale of colors it relates to the rock of the highest category D and a physical type IIa, is so rare that belong to it only about 2% of the world’s mined diamond jewelry. Flawless diamond weighing 101.73 carats, referring to the number of the most successful in the history of the jewelry industry, never before sold. The stone was recently cut from a rough diamond, weighing 236 carats, that had been found at the Jwaneng mine in Botswana. It took 21 months to polish, said Christie’s.