Carbon trade in both types of diamonds exists, the two markets act in dramatically different ways. Unlike precious metals such as gold or platinum, gem diamonds do not trade as a commodity: there is a substantial mark-up in the sale of diamonds, and there is not a very active market for resale of diamonds. Industrial diamonds are valued mostly for their hardness and heat conductivity, with the gemological qualities of clarity and color being mostly irrelevant. About 80% of mined diamonds (equal to about 100 million carats or 20 tonnes annually) are unsuitable for use as gemstones are relegated for industrial
Commodity currency on these harmful processes reducing their affiliated externalities. Countries with commodity currencies have difficulty changing their behaviors and reducing externalities with respect to the commodities that have a profound impact on their currencies. For example, the Canadian dollar is closely tied to soybeans and oil. The production of oil is extremely harmful to the environment however reducing its production through Cap and Trade programs or production taxes can be devastating to the Canadian Dollar. Commodity currency A commodity currency is a name given to some currencies that co-move with the world prices of primary commodity products, due to these countries'