101 - 110 of 125
gem testing tools
Selling leads
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Grating Gemologist Spectroscope With Adjustable Focus And Clear Color gem Spectrum Model Number: FGS-1A Product Application The spectroscope is a tool ...
2026-05-01 00:03:53
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Interference Ball Built In Warm Yellow Led Light Desktop Gem Polariscope FTP-LED Product Application The polariscope is one of the most underestimated ...
2026-05-01 00:03:54
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Gemology school Fable diffraction Gem Spectroscope With Adjustable Focus Model Number: FGS-1A Description: The spectroscope is a tool for examining ...
2026-05-01 00:03:53
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Gemological Lapidary Machine with Faceting and Polishing Functions Model number: FJM-2014 The gem lapidary machine is used for gem facet processing ...
2024-12-09 13:30:28
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...structure and optical properties of precious stones or minerals. The stone is tested by rotating it 360° between the crossed polarising filters. ...
2024-12-09 10:57:50
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Portable With Monochromatic Light Filter Gemological Testing Instrument FGR-003A Model number: FGR-003A Type Testers & Measurements Testing scale 1.35...
2026-05-01 00:03:53
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Portable With Monochromatic Light Filter gemological refractometer FGR-003A Model number: FGR-003A Type Testers & Measurements Testing scale 1.35-1.85 ...
2026-05-01 00:03:53
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Gemology Equipment With 0.002 Accuracy With Polarizing Lens hand refractometer Model number: FGR-002A Type Testers & Measurements Testing scale 1.35-1...
2026-05-01 00:03:53
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... to carry, the most commonly used and the most practical jewelry identification tool. Specifications: Technical Parameter Magnification 15X Size of ...
2024-12-09 10:54:02
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...t commonly used and the most practical jewelry identification tool. Specifications: Technical Parameter Magnification 20X Size of lens 21mm ...
2024-12-09 10:54:02
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