Professional Digital Refractometer for Gemstones, Portable 1.300-3.000 RI, 0.001 Accuracy, 700mAh Battery, LCD Display, Ideal for Jewelry, Jade, and Crystal Testing

Are you concerned about how to quickly and accurately distinguish genuine diamonds from fakes, potentially impacting your professional reputation? Our gemstone refractometer is designed to eliminate those worries. By measuring the refractive index—a key physical property—you can instantly verify the authenticity of diamonds, giving you the confidence to assure your clients. **Key Features:** - **Accurate Measurements**: With precision up to ±0.005 and a minimum scale value of 0.001, you can trust the readings. - **Large LCD Display**: The backlit screen ensures visibility in any lighting situation, making it easy to read measurements. - **Durable Design**: Crafted with an aluminum alloy table and a flat switch made from ABS material, this refractometer is built to last. - **Long-lasting Battery**: The built-in 700mAh lithium battery allows for up to 10,000 measurements on a single charge, ensuring you won’t be left in the dark during crucial evaluations. **Specifications:** - Size: 135 x 78 x 24 mm (5.31" x 3.07" x 0.94") - Weight: 250g (0.55 lbs) - Measurement Range: Refractive Index 1.300 to 3.000 - Accuracy: ±0.001 - Measurement Error: ±0.005 - Battery Capacity: 700mAh **Package Includes:** - 1 Gemstone Refractometer - 2 Calibration Blocks (1.487 and 1.806) - 1 Aluminum Storage Box - 1 Tweezers - 1 Countertop Cover - 1 Instruction Manual **Note**: For the best results, we recommend calibrating the device using the included calibration blocks before each use. This ensures you achieve the highest accuracy every time you assess a stone. Elevate your gemstone evaluation process with our reliable refractometer and enhance your professional credibility today!

• The NT DESIGN Portable Jewelry Refractometer is lightweight at just 250g, featuring a durable aluminum alloy shell that resists scratches. It includes an LCD backlit display and ABS insulated switches for safe operation. With built-in triple flat protection, it ensures clarity and safety during use. Powered by a rechargeable 700mAh lithium battery, it supports up to 10,000 measurements per charge, making it ideal for jewelers and gem enthusiasts.
• Introducing the Digital Mstone Refractometer, designed to measure the Refractive Index of various Mstone types. This essential tool helps in distinguishing Mstone species and evaluating their physical properties. Equipped with a high-precision sensor, it operates on the principle of Total Internal Reflection, providing accurate and reliable measurements for informed identification.
• The Digital Mstone Refractometer is an essential tool for Jewelry Identification, offering non-destructive, quick, and precise measurements of the refractive index. With a measurement range of 1.300-3.000, it caters to the identification needs of most common mstones. Featuring a built-in high-precision sensor, it provides reliable data with an accuracy of up to 0.001 and a measurement error of ±0.005.
• 【EASY TO USE】The Digital Mstone Refractometer eliminates the need for refractive oil. Simply bring the sample close to the measuring platform to assess whether the Mstone is uniaxial or biaxial. This product simplifies your workflow while ensuring the integrity of data measurements. It includes two calibration blocks of 1.487 and 1.806 for accurate results.
• Discover the WIDE APPLICATION of our advanced Refractive Index Tester. This essential tool accurately identifies Single Crystal Gems, Twin Crystal Gems, Diamonds, and various Colored Stones. Perfect for Jewelry Appraisal Institutions, Gemstone Factories, and Collectors. Enhance your gemstone analysis with precision and ease, making it a must-have for any professional or enthusiast.