Blue Moon Press Release HR "Natural blue diamonds are rare in the world. If they are rare, they will be rare in life. 'Blue Moon' is such a kind." -The "Blue Moon" monograph of the American Gemological Institute (2015) Sina Collection: On September 17, 2015, Sotheby's in Geneva will soon showcase the rare and beautiful 12.03 Cara “Blue Moon†diamond, one of the largest fresh blue diamonds currently known in the world. This diamond weighs 12.03 carats and is certified by the Gemological Institute of America (GIA) as Fancy Vivid Blue, the highest color level of the blue diamond; the ancient cushion-shaped cut highlights its internal GIA Innocent and clear. This unparalleled "Blue Moon" diamond will be the focus of Sotheby's November 11th "Magnificent Jewelry and Aristocratic Jewelry" auction, with an estimated value of 35 million to 55 million US dollars / 2 billion From 73 million to 422 million Hong Kong dollars. In January 2014, Petra Diamonds (the famous owner of the Cullinan Diamond Mine in South Africa) announced the discovery of a 29.62-carat blue diamond rough stone, which caused international media to report. This long-established legendary mine is the only reliable source of blue diamonds in the world, but these rare blue diamonds account for only a tiny fraction of their diamond production. This blue diamond was purchased by Cora International after the tender. Its headquarters is located on Fifth Avenue in New York. It is the world's top luxury brand and diamond cutting expert. It has handled many world-famous rare diamonds including all kinds of colored diamonds. . The “Blue Moon†diamond was cut and polished by Cora, using complex and sophisticated techniques and techniques, which took six months to complete. In the formation of diamonds, when a trace amount of boron is mixed with carbon, the diamond is blue. This rare and enduring "Blue Moon" diamond is amazed by scientists at the Smithsonian National Institute of Gems and Minerals. Before the blue diamond was exhibited at the Gem Hall of the Natural History Museum in Los Angeles, the relevant departments invited these scientists to carefully study the evaluation. According to the review report, they believe that the "blue moon" is full of color and is full of no other colors. Elose Gaillou, director of the Minerals and Gems Department at the Natural History Museum in Los Angeles, pointed out that “Blue Moon†has “deep sea blue color†and “sees its color, clarity and size, which is the best for rare diamondsâ€. Women'S Wear,Ladies High Waist Leggings,Yoga Leggings,Swimming Wear SHAOXING SOYONG TRADING CO., LTD. , https://www.cn-soyong.com