Nov 18, 2020

PPT - 10 Great diamond testing machine Public Speakers PowerPoint Presentation - ID:10191229

What is a diamond tester? A diamond tester is a device that is used to check for the quality of diamonds while at the same time being an economical and useful tool for both professionals and amateurs alike. A tester is generally made up of a flat metal plate with two metal rings. In general a diamond tester comes in a number of different styles. There are also testers designed for special types...

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