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About product and suppliers:
        Alibaba.com offers 10,739 rough gems products. About 83% of these are loose gemstone, 1% are semi-precious stone crafts, and 1% are other non-metallic minerals & products. 

A wide variety of rough gems options are available to you, such as zircon, sapphire, and emerald. You can also choose from natural, synthetic (lab created), and mineral gemstones. As well as from princess cut, round brilliant cut, and oval cut. And whether rough gems is color play or fire, color change, or star. 

There are 9,863 rough gems suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 47%, 34%, and 9% of rough gems respectively. 

Rough gems products are most popular in North America, South America, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 1,896 with Other, 60 with ISO9001, and 18 with OHSAS18001 certification.