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  • The Billion Dollar Business of Diamonds, From Mining to Retail

    Aug 27, 2012· Diamonds. For thousands of years, they have been believed to bring good luck (and bad luck!) — health, wealth, and protection against most of the ills that can befall mankind. They are also a ...

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    Canadian diamonds are diamonds which have been mined in any one of the major Provinces and territories of Canada.Diamond-rich areas weren't discovered in Canada until the early 1990s. Before that time, diamonds were only known by Indigenous communities [citation needed].For the first 60 years of the 20 th century, diamonds originated from kimberlite pipes and alluvial deposits in places such ...

  • Top Ten Diamond Companies in the World - Petra Gems

    The Ten Largest Diamond Manufacturers and Traders in the World The diamond trade brings hundreds of thousands of people together from all around the globe. From individual miners cutting up rocks in search of the elusive gem, to the corporations that employ them, to the dealers that aggregate the diamonds, sort them, and ship them to dealers and jewelers who turn them into classic ...

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    For example, diamond's fluorescence when exposed to an X-ray. Sensors detect flashes of light emitted by the diamond and sends a signal to a microprocessor that fires a blast of air at the diamond, which spits it into a collection box. Stage 5 – Cleaned, weighed and packaged.

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  • THE DIAMOND INDUSTRY FACT SHEET

    THE DIAMOND INDUSTRY FACT SHEET How large is the diamond industry? Diamonds are one of the world's, and specifically Africa's, major natural resources. An estimated US$13 billion worth of rough diamonds are produced per year, of which approximately …

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    Stage 4 - The Final Journey After the diamond is manufactured it needs to be sold but for decades, diamond manufacturers have sold their cut diamonds to jewelry manufacturers and wholesalers who in turn, sell to jewelry diamond dealers and to retail jewelry stores. Today's Internet technology is changing the diamond market, diamond manufacturers now have a direct link to the final customer.

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    Diamond extraction from primary deposits (kimberlites and lamproites) started in the 1870s after the discovery of the Diamond Fields in South Africa. Production has increased over time and now an accumulated total of 4,500,000,000 carats (900,000 kg) have been mined since that date.

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    Aug 27, 2015· In the Democratic Republic of Congo, almost all diamond mining is done by hand. It's a labor-intensive process that requires hauling away layers of dirt and rock, sometimes 50 feet deep, to ...

  • Diamond Processing Flow Chart of Beneficiation

    This is a Diamond Processing Chart as it was done in the 1950s. World demand and production of diamond both for gem and industrial purposes has increased nearly five-fold during the past 25 years. Improved mining and recovery methods together with the discovery and development of new fields has enabled mining operations to fill the growing demands.