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        Alibaba.com offers 805 untreated diamond products. About 48% of these are loose gemstone, 18% are loose diamonds, and 1% are abrasive tools. A wide variety of untreated diamond options are available to you, such as si1, si2, and vvs1. You can also choose from round brilliant cut, emerald cut, and cushion cut. As well as from good, very good, and excellent. And whether untreated diamond is natural, or synthetic (lab created). There are 791 untreated diamond suppliers, mainly located in Asia. The top supplying countries are India, China (Mainland), and United States, which supply 50%, 45%, and 2% of untreated diamond respectively. Untreated diamond products are most popular in North America, South America, and Eastern Europe. You can ensure product safety by selecting from certified suppliers, including 89 with Other, 26 with ISO9001, and 1 with ISO14001 certification.
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