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About product and suppliers:
        Alibaba.com offers 35,606 blue gem products. About 62% of these are loose gemstone, 8% are silver jewelry, and 2% are pendants & charms. 

A wide variety of blue gem options are available to you, such as round brilliant cut, oval cut, and heart cut. You can also choose from color play or fire, iridescence/iridescent, and star. As well as from zircon, sapphire, and opal. And whether blue gem is synthetic (lab created), natural, or mineral gemstones. 

There are 34,782 blue gem suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Thailand, which supply 57%, 36%, and 2% of blue gem respectively. 

Blue gem products are most popular in North America, South America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 6,184 with Other, 489 with ISO9001, and 67 with SA8000 certification.