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About product and suppliers:
        Alibaba.com offers 80 diamond detector pen products. About 91% of these are jewelry tools & equipment, 3% are currency detectors, and 2% are voltage meters. 

A wide variety of diamond detector pen options are available to you, 

There are 80 diamond detector pen suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of diamond detector pen respectively. 

Diamond detector pen products are most popular in Southern Europe, Northern Europe, and Central America. 

You can ensure product safety by selecting from certified suppliers, including 1 with BSCI certification.