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About product and suppliers:
        Alibaba.com offers 53,422 precious gemstone products. About 34% of these are loose gemstone, 8% are stone beads, and 6% are semi-precious stone crafts. 

A wide variety of precious gemstone options are available to you, such as ruby, agate, and zircon. You can also choose from natural, synthetic (lab created), and mineral gemstones. As well as from pear cut, round brilliant cut, and oval cut. And whether precious gemstone is color play or fire, pleochroic/pleochroism, or color change. 

There are 52,424 precious gemstone suppliers, mainly located in Asia. The top supplying countries are India, China (Mainland), and Hong Kong, which supply 65%, 32%, and 1% of precious gemstone respectively. 

Precious gemstone products are most popular in North America, South America, and Central America. 

You can ensure product safety by selecting from certified suppliers, including 3,421 with Other, 287 with ISO9001, and 51 with ISO14001 certification.