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Author: Admin | 2025-04-28
Once the ore has been crushed it is mixed with a "slurry made of finely ground ferrosilicon" of a particular density in a process called dense medium separation (DMS) DeBeers Source: De Beers Because diamonds repel water and are drawn to grease, the crushed is passed over a grease belt that the diamonds then stick to. They can also be identified under x-rays De Beers Source: De Beers Rough diamonds are measured and sorted before they are cut De Beers Source: De Beers Rough diamonds are sorted at DeBeer's central selling organization (CSO) for cutting, sawing, or for industrial use De Beers Source: De Beers Diamonds are sorted in thousands of categories according to weight, color and clarity De Beers Source: De Beers A worker can be seen handling rough diamonds with tweezers De Beers Source: De Beers Rough diamonds are sorted into three categories gem quality, industrial quality, and boart De Beers Source: Info Diamond Though automation is used to sort diamonds, experts can categorize diamonds into 5,000 categories De Beers Source: De Beers Here a cutter is seen examining the facets of a diamond as he cuts it De Beers Examiners have to constantly stop and check the facets of the diamonds De Beers The manner in which diamonds are cut and polished also depends on their color De Beers Each stone is checked under the microscope for clarity De Beers After the diamonds are "manufactured" they are ready to be sold to jewelry makers and diamond wholesalers De Beers Read next Thanks for signing up! Look out for your first newsletter with today's big story in your inbox soon. Thanks for signing up! Access your favorite topics in a personalized feed while you're on the go. By clicking “Sign Up”, you agree to receive emails from Business Insider. In addition, you accept Insider's Terms of Service and Privacy Policy.
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