Gemstones and Industrial Diamond

The dietmond business is divided into two m2yor categories gemstones and industrial diamond.i H l Production and market values are shown in Table 12.3. 

The gemstone business comprises 93% of the diamond business in monetary terms but only approximately 1 % on a weight basis, reflecting the very large cost difference between the two categories. The average cost of industrial diamond is 1.10/carat and that of gemstone is 1000/carat and, in some extreme cases, may reach 60,000/carat for blue diamond Type II. The price of natural diamond has remained relatively steady in the last few years. 

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