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
Refine M6 Refine M6 The Refine M6 is a minivan produced by Chinese auto maker JAC under the Refine sub-brand since 2013. Despite its dimensions being smaller than the Refine M4, it is the most premium Refine MPV, sitting above the Refine M3, Refine M4, and Refine M5 making it the flagship of the Refine brand. According to the official website, pricing for the Refine M4 ranges from 239,500 to 349,500 yuan, positioning the Refine M6 above the Refine M5. The design of the Refine M6 is heavily inspired by the second generation Toyota Alphard. A facelift was revealed in 2017, mainly