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 chain the same business. A number of commentators have remarked that in the Internet age commodity chains are becoming increasingly more transparent. The Wikichains.com project has adopted the same wiki technology used by Wikipedia in order to help make commodity chains more transparent. "They are a network of labour and production processes whose end result is a finished commodity". William Jones Esq. A commodity chain demonstrates that each link of an extended chain of production and consumption links between resource producers and suppliers, various manufacturers, traders and shippers, wholesalers, and retailers. Rather than a linear chain, a circuit-board is a better