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About product and suppliers:
        Alibaba.com offers 190 digital gem refractometer products. About 87% of these are refractometers, 10% are jewelry tools & equipment. 

A wide variety of digital gem refractometer options are available to you, such as testers & measurements, loupes, magnifiers. You can also choose from free samples. 

There are 192 digital gem refractometer suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 94%, 3%, and 2% of digital gem refractometer respectively. 

Digital gem refractometer products are most popular in North America, Domestic Market, and South Asia. 

You can ensure product safety by selecting from certified suppliers, including 99 with Other, 73 with ISO9001, and 56 with ISO13485 certification.