Ratings among rare blue diamond, Blue Moon was oval stones largest auction in this category.
The company predicts Sotheby Blue Moon will be sold for a final price of 55 million dollars ( equivalent to 1.250 billion) in the auction "Magnificent Jewels and Noble Jewels" was held in Geneva, Switzerland in November next. At the same time, prices will break the record of pink diamonds Graff Pink ever sold for USD 46.1 million (equivalent to 1,048 billion) by 2010.
Experts in the field of gems said that natural color diamonds have often been highly valued in the industry and also gems often excessively priced. Roughly 10,000 diamonds mined, only one member in color, possibly red, orange, green, blue or pink.
The diamond processing was planned with extreme caution, because only a small error can also cause it to crumble.
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