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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 ).
The weight of a diamond is one of these variables that determines a diamond’s worth and is what the general public is most familiar with. The unit of measurement, called the carat, equals 200 ...
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]
The World Federation of Diamond Bourses, founded in 1947, [1] was created to provide bourses trading in rough and polished diamonds and precious stones with a common set of trading practices. It is composed of 27 [ 2 ] member diamond bourses.
Lab-grown diamonds aren’t new and have been around since the 1950s — only 20 years after South African-British ... Africa over diamonds. ... 2023, sales for wholesale polished diamonds ...
Martin Rapaport is the chairman of the Rapaport Group and founder of the Rapaport Diamond Report and RapNet, an online diamond trading network. [1] Known for his influential role in the diamond industry, Rapaport has been both a pioneer and a controversial figure, advocating for price transparency, ethical sourcing, and the commoditization of diamonds.
McKinsey called lab-grown diamonds “likely the biggest challenge facing diamond producers today” because of their perceived ethical advantages, lower price, similarities to natural diamonds ...
Since the 1950s, techniques can produce gem-quality diamonds of essentially any desired chemistry in sizes up to about 1cm. [6] Although some manufacturers do label their synthetic diamonds with serial numbers, there is no guarantee that a given diamond is not man made, although sometimes an unnatural chemical composition or pattern of flaws may suggest a diamond is synthetic.