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About product and suppliers:
        Alibaba.com offers 1,812 diamond tester products. About 39% of these are jewelry tools & equipment, 24% are hardness testers, and 12% are testing equipment. 

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

There are 1,812 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 Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 375 with ISO9001, 263 with Other, and 17 with ISO14001 certification.