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About product and suppliers:
        Alibaba.com offers 1,726 certified gemstones products. About 72% of these are loose gemstone, 11% are rings, and 10% are gold jewelry. 

A wide variety of certified gemstones options are available to you, such as ruby, emerald, and agate. You can also choose from natural, mineral gemstones, and organic gemstones. As well as from oval cut, round brilliant cut, and emerald cut. And whether certified gemstones is opalescent/opalescence, iridescence/iridescent, or color change. 

There are 1,703 certified gemstones suppliers, mainly located in Asia. The top supplying countries are India, China (Mainland), and Sri Lanka, which supply 70%, 15%, and 6% of certified gemstones respectively. 

Certified gemstones products are most popular in North America, Central America, and South America. 

You can ensure product safety by selecting from certified suppliers, including 71 with Other, 35 with ISO9001, and 3 with ISO14001 certification.