Gem Tester with LCD Display, Refractometer for All Stones, 700mAh Battery, Accurate Refractive Index 1.300-3.000, Ideal for Jewelry & Jade Stores

Unlock the secrets of gemstones with our Portable Digital Refractometer, designed for jewelers, enthusiasts, and collectors. This essential tool allows you to accurately identify gemstones in seconds, making it perfect for gem shows, field trips, or your home workshop. Harnessing the principle of total internal reflection, this refractometer offers lab-grade precision right at your fingertips. With a measurement range of 1.300 to 3.000 and an impressive accuracy of ±0.001, you can trust this device to help distinguish between various gem species and verify authenticity with confidence. Say goodbye to messy refractive oils! Our user-friendly design enables you to achieve fast, clean, and contactless readings. Simply place your gem on the measurement platform for effortless operation. The lightweight yet durable aluminum alloy construction (only 250g / 0.55 lbs) ensures that it can withstand the rigors of both fieldwork and everyday use, while the bright backlit LCD display guarantees clear readings in any lighting condition. Enjoy long-lasting performance with a powerful 700mAh battery that allows for approximately 200 measurements per charge. This efficiency makes it an ideal companion for extended use, whether you're at a gem show or conducting personal studies. Your complete gem identification package includes everything you need: the refractometer, an aluminum carrying case, tweezers, a cleaning cloth, a countertop cover, calibration blocks (1.487 & 1.806), and an easy-to-follow English manual. For best results, remember to calibrate your refractometer using the included blocks before each session to ensure optimal accuracy. Elevate your gemstone identification experience with our Portable Digital Refractometer and take your gem knowledge to the next level!

• Discover the essential tool for gemstone analysis with our Gem Refractometer. Designed to measure the Refractive Index, this device aids in distinguishing various Gemstone Types and assessing their properties. Featuring a high-precision sensor, it leverages total internal reflection for accurate readings. Trust our refractometer for reliable support in your Gem Identification process.
• Discover the Perfect Jewelry Refractometer for Gemstone Analysis! This compact and lightweight device, weighing just 250 grams, features a durable aluminum alloy shell that is scratch and corrosion-resistant. The LCD backlit display and ABS insulated switches provide enhanced visibility and safety. Enjoy precision and longevity with built-in triple insulation protection, making it an essential tool for jewelers and gem enthusiasts alike.
• Discover the versatility of our Refractive Index Gemstone Tester, ideal for assessing the refractive index of gemstones and solid materials. This tool accurately identifies single and twin crystal gemstones, diamonds, and a variety of colored gemstones. Perfect for jewelry appraisers, gem processing facilities, and collectors. Note: Not suitable for semi-finished products, poorly polished stones, gemstones 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.