The World’s Largest Rough Diamond. An estimated US$13 billion worth of rough diamonds are produced per year, of which approximately US$8.5 billion are from Africa (approximately 65%). However, there is one rough Diamond that is worth mentioning before we move on, and that is the Cullinan Diamond. The diamond industry employs … Angola's major new Luaxe diamond deposit may start trial mining in mid-2020 and could produce 1 million carats of diamonds worth $90 million in 2020, Russian diamond producer Alrosa said. The Cullinan Diamond is also known as the ‘Star of Africa’ and was found in South Africa. While various images of the diamond show it as a golden to orange color, it has been graded as a fancy yellow-brown diamond. Acorn-sized jewel, from the same mine that produced the diamond in Britain's crown jewels, is expected to fetch up to £12m at auction In 1830 a blue diamond was bought by a diamond dealer named Henri Thomas Hope. A Cullinan Diamond, known as the Star of South Africa. In order to be considered a ruby and not a sapphire, the stone must possess a … However, "Sergio", a black carbonado diamond from Brazil … Diamond Prices. Mar 20, 2017 - The nine different gems that make up the Cullinan diamond shine in the British royal collection nowadays. According to Forbes , “Unlike gold, which has a quantifiable melt value, resale prices for diamonds have no one objective measure, making it easy for inexperienced sellers to become confused and overwhelmed.” The Great Star of Africa 530.20 Carats - the Cullinan I or Star Africa diamond is the largest cut diamond in the world. The Cullinan diamond is the largest uncut diamond ever discovered. They argue, correctly, that 99 percent of all diamonds come from places that are not presently at war: South Africa, Namibia, Botswana, Tanzania, Russia, Canada, Australia, even Arkansas. 9. The largest stone is called the “Star of Africa I,” or “Cullinan I,” and at 530 carats, it is the largest-cut fine-quality colorless diamond in the world. The Millennium Star is the outcome of the largest piece. Additionally, it was the largest polished diamond of any color until the Golden Jubilee Diamond was discovered in 1985 in the Premier Mine, the same location in which the Cullinan diamond was found. You also might want to know how to avoid buying a conflict or blood diamond for your special someone, and what people are doing to eliminate this problem completely. The value of the stone hasn't been revealed but the Millennium Star was insured for 100 million English pounds, this is believed to be a fraction of its true worth. Africa Africa is rich in diamonds but still poor. Another is the most valuable stone in the imperial state crown, the 317-carat Cullinan II, sometimes called the Second Star of Africa.… Found in the Premier No. Pear shaped, with 74 facets, it is set in the Royal Scepter (kept with the other Crown Jewels in the Tower of London). 1:24pm Aug 24, 2020. This Diamond weighed in at 3106.75cts in the rough. The most notable are The Great Star of Africa, still the second largest cut diamond in the world at 530.20 carats in a pear shaped cut, and the Cullinan II, a 317.40 carat cushion cut stone. 2 mine, near Pretoria, South Africa. The largest is a 520.0 carat pear shaped diamond, known as the Cullinan I diamond, or the Star of Africa and is set in the Imperial Sceptre and the second stone, the Cullinan II or Lesser Star of Africa at 317.4 carat, is set in the Imperial State Crown of … Lots of people contact us to ask us how much their diamond is worth. 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