500-carat diamond found at S. Africa

One of the largest, high calibre diamonds institute so far have been institute in a mine in South Africa, the defence consort Petra Diamonds has revealed.The 507-carat pericarp that could have a continuance of over $ 20m (£ 12.5m) was institute with three another large diamonds.The mine also produced the maximal parcel found, the Cullinan at 3,106 carats in the rough. At the ended pericarp is set in Britain's Imperial Scepter as conception of the honor jewels.The world's maximal certificated diamonds are the 3106-carat Cullinan, was institute at the mine nearby Pretoria, South continent in 1905. It was revilement to form the Great Star of continent and the Lesser Star of continent set in the honor jewels in the United Kingdom.Petra oversubscribed a 7.03 carat chromatic diamond, revilement from a 26.58-carat wrinkled pericarp institute in the mine for 9.48 meg U.S. dollar in May.
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