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  2. Diamond Trading Company - Wikipedia

    en.wikipedia.org/wiki/Diamond_Trading_Company

    The Diamond Trading Company (DTC) is the rough diamond sales and distribution arm of the De Beers Group. The DTC sorts, values and sells about 35% of the world’s rough diamonds by value. [ 1 ] The DTC has a combination of wholly owned and joint venture operations in South Africa (DBSSSA), Botswana (DTCB and DBGSS), and Namibia ( NDTC ).

  3. Rapaport Diamond Report - Wikipedia

    en.wikipedia.org/wiki/Rapaport_Diamond_Report

    Each grid has the clarity options on the horizontal line and the color options on the vertical line. In order to calculate the price of a diamond according to the Rapaport Price List, you need to know the size, color and clarity of the diamond. The price listed based on this information is in hundreds of dollars per carat. [3]

  4. Diamonds as an investment - Wikipedia

    en.wikipedia.org/wiki/Diamonds_as_an_investment

    In early 2025 diamond prices had dropped significantly from a peak in 2022; prices of natural gems in shops dropped by 26% by the beginning of 2025. Laboratory-grown diamonds had dropped by 74% since 2020. Prices were expected to continue decreasing. De Beers had started 2024 with US$2bn worth of diamonds, which it had not sold by the end of ...

  5. List of countries by diamond production - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This is a list of countries by diamond production, ... Country 2023 2022 2021 2020 ... South Africa: 794: 1539: 1360:

  6. De Beers - Wikipedia

    en.wikipedia.org/wiki/De_Beers

    [31] [34] [9] Oppenheimer was very concerned about the discovery of diamonds in 1908 in German South West Africa, fearing that the increased supply would swamp the market and force prices down. [ 10 ] [ 11 ] Former CIA chief Admiral Stansfield Turner claimed that De Beers restricted US access to industrial diamonds needed for the country's war ...

  7. Diamond (gemstone) - Wikipedia

    en.wikipedia.org/wiki/Diamond_(gemstone)

    The value of a diamond gemstone depends upon colour and quality, as well as weight. As of April 2024 the average price per carat of diamonds of between 1.00 and 1.49 carats was US$4,448. [48] The price of diamonds dropped significantly from a peak in 2022; prices of natural gems in shops dropped by 26% by the beginning of 2025.

  8. List of largest rough diamonds - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_rough_diamonds

    South Africa: Premier Mine: 1985: Government of Thailand 726.6: The Vargas Brazil: San Antonio River: 1938: 726: The Jonker South Africa: Elandsfontein: 1934: 709: Peace Diamond [24] Sierra Leone: Artisanal mine: 2017: Graff Diamonds (bought for US$6.5m) [25] 692.3 [26] Botswana: Karowe Mine: 2023: Sold for US$13m after polishing. 650.8: The ...

  9. Baken diamond mine - Wikipedia

    en.wikipedia.org/wiki/Baken_diamond_mine

    The Baken diamond mine is a diamond mine located along the lower Orange River in South Africa. The mine is owned and operated by Lower Orange River Diamonds. The central processing plant has been operational at Baken since 2001. In 2004 the Baken mine produced 88,063 carats (17.6126 kg); average stone size for the year was 1.29 carats (258 mg).