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This is a partial list of the largest non-synthetic diamonds with a rough stone (uncut) weight of over 200 carats (40 grams). [1] The list is not intended to be complete—e.g., the Cullinan (formerly Premier) mine alone has produced 135 diamonds larger than 200 carats since mining commenced.
The Cullinan Diamond is the largest gem-quality rough diamond ever found, [2] weighing 3,106 carats (621.20 g), discovered at the Premier No.2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan, the owner of the mine. In April 1905, it was put on sale in London, but despite considerable interest, it was still ...
The Oppenheimer Diamond, a nearly perfectly formed 253.7 carats (50.74 g) yellow diamond crystal, is one of the largest uncut diamonds in the world, [1] and measures approximately 20 mm × 20 mm (0.79 in × 0.79 in).
Botswana, a country of 2.6 million people in southern Africa, is the second-biggest producer of natural diamonds behind Russia and has unearthed all of the world’s biggest stones in recent years.
Lucara Diamond, in a news release Wednesday, said the "exceptional 2,492-carat diamond" was a "remarkable find" and "one of the largest rough diamonds ever unearthed." It was recovered using the ...
In a press release, Lucara called the find “remarkable,” adding that the 2,492-carat diamond is “one of the largest rough diamonds ever unearthed.”. The company found the jewel in Botswana ...
The Sefadu diamond was found in the town of Sefadu in Sierra Leone in 1970. The diamond is 620 carats making it the seventh largest diamond ever found and the largest still uncut diamond in the world. [1] [2]
When discovered in 1905 the 3106.75 carat (621.35 g) Cullinan was the largest rough gem-quality diamond ever found. It was cut into 105 diamonds including the Cullinan I or the Great Star of Africa, 530.2 carats (106.04 g), and the Cullinan II or the Second Star of Africa, 317.4 carats (63.48 g), both of which are now part of the British Crown ...
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