Cora Sun-Drop Diamond
Cora Sun-Drop Diamond is also called “Shard of the Sun”, “Tears of the Sun”. The unique diamond has a number of characteristics of the highest among all diamonds and a record – in its class. Rough diamond was mined in 2010 in kimberlite mines of South Africa. To facet stone the largest diamond processing company US – Cora International LLC, NY, had to spend about six months. The time was taken for choosing a suitable shape and filigree. The company asked Gemological Institute of America, GIA for an expert opinion on the received diamond.
Analysis found stone age no less than 1 billion years old; rare bright yellow color is due to a high content in the crystal structure of diamond-related molecules of nitrogen; wherein they are distributed as uniformly stone which transparency is close to ideal. Diamond has been certified as a “fantasy” – that is, the highest category – the color and purity, and as the biggest bright yellow pear-shaped diamond in the world. Experts have called and the approximate value of a diamond – from 11 to 15 million dollars.
As a pre-sale preparation in February 2011 a “young” gem briefly became exhibit the Natural History Museum in London, where it was exhibited with the “Pyramid of Hope” – a unique collection of 296 colored diamonds collected through the efforts of the corporation «Aurora Gems» – and already 15 November 2011 the diamond was sold at auction in Geneva office of the auction house “Sotheby’s” to an anonymous telephone buyer for 12.4 million, of which $ 1.5 million comprised fees of the auction. Some commentators have noted that the sale price was 100 thousand dollars below the lower threshold of 11 million dollars, set by a preliminary evaluation experts of GIA, but even so, the representatives of “Sotheby’s” claimed that lot “Drops of the Sun” staged absolute record price.