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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.
A brownish-yellow diamond of 407.48 carats (81.496 g) cut from an 890 carat (178 g) rough diamond of the same name - it appeared on eBay in 2002. Internally Flawless clarity. Several other smaller diamonds were also cut from the crystal. —
The Kimberley Process Certification Scheme (KPCS) is the process established in 2003 to prevent "conflict diamonds" from entering the mainstream rough diamond market by United Nations General Assembly Resolution 55/56 following recommendations in the Fowler Report. The process was set up "to ensure that diamond purchases were not financing ...
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 ...
Raw diamonds from the mines were typically transported to Golconda—now the western part of Hyderabad— [28]) for skilled lapidary, enhancement, further evaluation, and sale. [17] [19] [20] The art of macle, which is a form of rough diamond that is used to produce jewellery, was first developed in the Golconda region. [29]
Diamond cutting is the art and science of creating a gem-quality diamond out of mined rough. The cut of a diamond describes the manner in which a diamond has been shaped and polished from its beginning form as a rough stone to its final gem proportions. The cut of a diamond describes the quality of workmanship and the angles to which a diamond ...
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The auction ended with no sale and is still considered the most expensive loose diamond ever offered and listed on the eBay auction site. The intended sale is referenced on various websites under The Incomparable Diamond. The Lesotho Brown was unearthed at the Letseng diamond mine in Lesotho in 1967 at Letseng-la-Terai by Ernestine Ramaboa. The ...