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About product and suppliers:
        Alibaba.com offers 1,823 diamond tester products. About 38% of these are jewelry tools & equipment, 23% are hardness testers, and 10% are testing equipment. 

A wide variety of diamond tester options are available to you, such as testers & measurements, engraving tools, and loupes, magnifiers. You can also choose from free samples, paid samples. 

There are 1,823 diamond tester suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of diamond tester respectively. 

Diamond tester products are most popular in North America, Southern Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 363 with ISO9001, 254 with Other, and 17 with ISO14001 certification.