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 S3 Refine S3 The Refine S3 is a Compact CUV produced by JAC Motors under the Refine sub-brand. Originally launched on the 2013 Shanghai Auto Show as the Heyue S30 under the Heyue sub-brand, the compact crossover was quickly rebranded to Refine S3 shortly after during the 2014 Beijing Auto Show. Pricing of the Refine S3 was revealed later during the 2014 Chengdu Auto Show with prices ranging from 65,800 yuan to 84,800 yuan. The facelifted Refine S3 crossover was launched on the 2016 Chengdu Auto Show in China. The 2016 facelift includes redesigned grilles, triangle shaped fog lights, new headlights,