Chelsea and Synthetic Emerald Testers Made Easy (4, 2014) | Antoinette Matlins

Explains in non-technical terms how to use the Chelsea filter and synthetic emerald filter to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and

Varenr.:

2943430

Levering:

23 - 25 hverdage

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