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2. Kimberley Process Certification Scheme - Wikipedia

   en.wikipedia.org/wiki/Kimberley_Process...

   The broadcast was not only a huge boost for the ADC, it proved to be an enormous setback for the Kimberley Process and ultimately ended De Beers’ ascendancy on the African continent. [66] In December 2010 Time Magazine published a piece discussing the newly established rough diamond trade in Zimbabwe. The article questioned the legitimacy of ...

3. Mineral industry of Africa - Wikipedia

   en.wikipedia.org/wiki/Mineral_industry_of_Africa

   The second-largest mineral industry in the world is the mineral industry of Africa, which implies large quantities of resources due to Africa being the second largest continent, with 30.37 million square kilometres of land.With a population of 1.4 billion living there, mineral exploration and production constitute significant parts of their economies for many African countries and remain keys ...

4. Kimberlite - Wikipedia

   en.wikipedia.org/wiki/Kimberlite

   False-color scanning electron microscope image of kimberlite from South Africa. Olivine crystals (green) are in a fine-grained matrix made up of clay minerals and carbonates (presented in blue, purple and buff colors). Kimberlite is an igneous rock and a rare variant of peridotite. It is most commonly known to be the main host matrix for diamonds.

5. Mining industry of the Democratic Republic of the Congo

   en.wikipedia.org/wiki/Mining_industry_of_the...

   Canada's mining ministry, Natural Resources Canada, estimated the 2009 value of Canadian-owned mining assets in the D.R. Congo at Cdn.$3.3 billion, ten times more than in 2001, making the DRC the African country with second-highest African level of Canadian investment after Madagascar, and Canadian investment in the Congo representing a sixth ...

6. List of largest rough diamonds - Wikipedia

   en.wikipedia.org/wiki/List_of_largest_rough_diamonds

   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.

7. Diamond (gemstone) - Wikipedia

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

   In the wholesale trade of gem diamonds, carat is often used in denominating lots of diamonds for sale. For example, a buyer may place an order for 100 carats (20 g) of 0.5-carat (100 mg), D–F, VS2-SI1, excellent cut diamonds, indicating a wish to purchase 200 diamonds (100 carats (20 g) total mass) of those approximate characteristics.