This 6.29-carat fancy-intense-blue diamond fetched $3.6 million, or $565,000 per carat, at Christie's on Thursday.

Last week we have seen yet another blue diamond dazzling for auction. At Christie’s spring jewelry sale there was a 6.29-carat fancy-intense-blue stone fetching $3.6 million.

In the press release the iconic New York based auction house informed that an anonymous buyer snapped up the pear-shaped stone, paying $565,000 a carat. This is yet another record setting sale of 7.03 carat flawless vivid-blue diamond by Sotheby's last month.

The other blue diamond was sold for $9.49 million which is the highest amount that was ever paid per carat for any gemstone sold in any auction.
On the whole, at the Christie’s New York Jewels auction there were signs of the economy’s slow recovery and in the auction they sold 91 percent as lot and 86 percent by volume. The Head of Jewelry Rahul Kadakia said a total of $11.3 million were made at Christie’s auction, "in a room buzzing with excitement.”

He continued saying, "Following our sales in Hong Kong and London, the auction in New York reaffirmed the strength of the jewelry market. We are delighted to end Christie's Spring Jewelry season with dominant market share of 65 percent in New York and 60 percent worldwide."

Few among the other stones which were sold included a 46.72-carat modified-rectangular-cut fancy yellow diamond with SI1 clarity, purchased by the U.S. trade for $602,500; a 10.01-carat pear-shaped internally flawless F-color diamond, which went to a private U.S. buyer for $458,500; and a diamond necklace by billionaire diamantaire Laurence Graff, purchased by a private buyer from the Middle East for $410,500.