Diamond Scribe - Borazon Tip for Stone Testing Bestseller Australian Gemmologist (a

Australian Gemmologist (a

allowing you to read measurements easily in any lighting conditions

amethyst and garnet became the materials of choice

Deuxième édition revue et complétée de ce manuel simple et pratique comportant les bases indispensables de la gemmologie

Diamond Scribe - Borazon Tip for Stone Testing Bestseller Australian Gemmologist (aA simple and effective tool to help determine whether a stone is a real diamond. The fine Borazon tip (hardness 9. 7) is used to lightly scratch the surface of the stoneif a streak appears, it is not a diamond. The tip is retractable for safe storage and long term use. Designed with a convenient pocket clip, this tool is easy to carry and always within reach.