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The Presidium multi-tester works according to the examined method of the thermal resistance for the identification of diamonds, sapphires and Moissanite. The test results are indicated visually (light) and acoustically (clay/tone).
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The Hand Proportionscope is bag equipment for mobile control of the ideal dimensions diamonds. Hearts and Arrows shows you the ideal cross section of a brilliant in a simple manner.
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As additive for a zoom microscope is proportion the eyepiece an aid as a check of the ideal dimension diamonds.
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This digital gemstone and diamond gauge can measure Stones from 0 to 26 mm with an accuracy of 0.01 mm.
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Dichroscopes to determine if a stone is doubly refractive. The Krüss dichroscopes give a bright, sharp image.
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Quality instruments to identify single or double refracting stones quickly and accuratly, and to distinguish between natural and synthetic amethyst, and to separate jade and chalcedony from glass. It also helps to detect strain in diamonds before cutting.
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Minerals with different hardness for the determination of the Mohs hardness. For easier handling they are fastened on metal pins.
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These filters are to be recognized a simple method around the respective stones by their color effects.
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Digital Pocket Scales with a range up to 350g and an accuracy of 0.01g.
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Immersion liquids for the use with horizontal microscopes.
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