Diamonds are sorted into different categories of size, shape and quality. Valuation is the process used to determine how much the diamonds are worth for taxation purposes. Diamonds are sorted by the mine to determine the value of the mine s production. Sorting for valuation is required by the Canadian government for tax and royalty purposes. The first diamond sorting and valuation facility opened in Yellowknife in early 1999.
People working in sorting and valuation include rough diamond sorters and rough diamond valuators.
In turn, the CSO sells the diamonds to traders and manufacturers. Direct sales is becoming a growing trend. People who work in the marketing of diamonds include diamond traders, manufacturers and marketing experts who work for diamond mines. Cutting and Polishing A diamond is cut and polished to make it sparkle as much as possible. First the rough diamond is examined to identify any imperfections and to determine how the biggest or best shape can be achieved.