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The Presidium Dial Gem Gauge (PDG) is the ultimate measurement tool for professionals who demand precision and efficiency
This state-of-the-art digital analyzer is patented and engineered for high performance
Key Features & Benefits
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Gem Refractometer Economical (CN) Diamond Boxes The Presidium Dial Gem GaugeGem Refractometer is a precision optical instrument, it works on Total Internal Reflection Principles. By measuring refractive index, the user can distinguish and identify varieties of gems. It has high hardness glass test table, with very low dispersion and the shadow edge is straight and clear. Scale range is 1. 35 1. 8 and has an easy to clean stainless steel table. Comes with external light source. Features : Exclusively designed to measure
