700mAh Gem Tester with LCD Display, Accurate Measurement 0.001, Refractive Index 1.300-3.000, ±0.005 Error, Ideal for Jewelry & Jade Stores, All Stones Compatible

700mAh Gem Tester with LCD Display, Accurate Measurement 0.001, Refractive Index 1.300-3.000, ±0.005 Error, Ideal for Jewelry & Jade Stores, All Stones Compatible

• Discover the essential tool for gem enthusiasts: our Gem Refractometer. This device measures the Refractive Index, a key optical characteristic for identifying various Gemstone types and assessing their properties. Featuring a high-precision sensor, it utilizes total internal reflection principles, ensuring accurate readings for reliable gem identification. Perfect for professionals and hobbyists alike!
• Introducing our Portable Jewelry Refractometer, expertly crafted with a Lightweight Aluminum Alloy Shell for durability. Weighing just 250 grams, it's easy to carry. The LCD Backlit Display ensures Bright Visibility, while the ABS Insulated Switches provide Safety. Experience precision in gem evaluation with this essential tool for Jewelers and Gem Enthusiasts alike.
• Designed for Measuring the Refractive Index of Gemstones, this tool quickly identifies Single Crystal and Twin Crystal Gemstones, Diamonds, and Colored Gemstones. Ideal for Jewelry Appraisal Institutions, Gem Processing Factories, and Collectors. Please Note: It does not measure Semi-Finished Products, Poorly Polished Gemstones, Stones Under 2.0mm², or Rough Stones.
• 【Easy to Use】No need to use refractive oil, just bring the sample close to the measuring platform to measure. Based on this parameter, you can tell whether the gemstone is uniaxial or biaxial. In addition, it is equipped with two calibration blocks of 1.487 and 1.806, which need to be calibrated before measurement to ensure the accuracy of the measurement results.
• 【Wide Application】Designed for measuring the refractive index of gemstones and various solid materials, it can quickly and accurately identify single crystal gemstones, twin crystal gemstones, diamonds and various colored gemstones. It is widely used in jewelry appraisal institutions, gem processing factories, collectors and other scenarios. Note: Semi-finished products, poorly polished gemstones, gemstones less than 2.0mm² and rough stones cannot be measured.