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Function: The jewelry tester is designed for fast, accurate and safe diamond testing. It is a portable electronic tool used to distinguish real and

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【DIAMOND IDENTIFICATION TOOL】This diamond tester pen can directly display the light color effect under the diamond tester to assist in evaluating the

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【SIMPLE AND FAST TO USE】Our diamond detector can quickly test the authenticity of diamonds, jade, agate, and crystal. If it is a real diamond, the

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