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About product and suppliers:
        Alibaba.com offers 17,009 opal stone products. About 31% of these are loose gemstone, 1% are crystal crafts, and 1% are semi-precious stone crafts. 

A wide variety of opal stone options are available to you, such as opal, agate, and amethyst. You can also choose from color play or fire, color change, and cat's eye. As well as from synthetic (lab created), natural, and mineral gemstones. And whether opal stone is oval cut, trillion cut, or pear cut. 

There are 16,797 opal stone suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 77%, 15%, and 4% of opal stone respectively. 

Opal stone products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 1,453 with Other, 190 with ISO9001, and 28 with BSCI certification.
        
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