Digital Refractometer for Gemstones - LCD Display, 700mAh Battery, Refractive Index 1.300-3.000, Precision 0.001, Ideal for Jewelry and Stone Testing

Are you concerned about the difficulty of distinguishing genuine diamonds from imitations, potentially undermining your professional credibility? Our gemstone refractometer is designed to eliminate that worry. By utilizing precise measurements of the refractive index, a fundamental physical property, this tool allows professionals to verify the authenticity of diamonds with confidence. **Key Features:** - **High Precision Measurement:** Enjoy accuracy within ±0.005, with a minimum scale value of 0.001, ensuring reliable results every time. - **Large LCD Backlit Screen:** Easily read measurements in any lighting conditions, enhancing your user experience. - **Durable Aluminum Alloy Table:** Built to withstand the rigors of professional use while providing a stable platform for accurate readings. - **Flat Switch Made of ABS Material:** Designed for durability and ease of use. - **Long-lasting Built-in 700mAh Lithium Battery:** Capable of up to 10,000 measurements on a single charge, perfect for busy professionals. **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 ~ 3.000 - Accuracy: ±0.001 - Measurement Error: ±0.005 - Battery Capacity: 700mAh **Package Includes:** - 1 x Gemstone Refractometer - 2 x Calibration Blocks (1.487, 1.806) - 1 x Aluminum Storage Box - 1 x Tweezers - 1 x Countertop Cover - 1 x Instruction Manual **Important Note:** For optimal accuracy, always calibrate the device using the included calibration blocks before each use. This ensures you maintain the highest standards in your gemstone evaluations, providing peace of mind to both you and your clients. Enhance your gemstone testing capabilities with our reliable refractometer and elevate your professional expertise.

• The NT DESIGN Portable Jewelry Refractometer is lightweight at just 250g, featuring a durable aluminum alloy shell for long-lasting use. Its LCD backlit display and user-friendly ABS switches ensure bright visibility and safe operation. Powered by a rechargeable 700mAh lithium battery, it efficiently supports up to 10,000 measurements per charge, making it an essential tool for jewelers and gemologists.
• Introducing the Digital Mstone Refractometer, designed to measure the Refractive Index of various Mstones. This essential tool features a high-precision sensor and operates on the principle of Total Internal Reflection. It aids in identifying Mstone types and assessing their physical properties, providing reliable support for your geological studies. Perfect for professionals and enthusiasts alike!
• The Digital Mstone Refractometer is an essential tool for Jewelry Identification, allowing you to measure the refractive index of Mstones quickly and non-destructively. With a measurement range of 1.300-3.000 and an accuracy of up to 0.001, it meets the needs of most common Mstones while providing reliable data for precise identification. Ideal for professionals and enthusiasts alike.
• Introducing the Digital Mstone Refractometer, designed for effortless use in your lab. No refractive oil required—simply place your sample on the measuring platform. This tool helps determine whether the mstone is uniaxial or biaxial, ensuring reliable results. It comes with two calibration blocks (1.487 and 1.806) for precise measurements, making it an essential addition to your optical equipment collection.
• **Wide Application**: This Refractive Index Tester is ideal for assessing gemstones and solid materials. It accurately identifies single and twin crystal gemstones, diamonds, and various colored stones. Perfect for use in jewelry appraisal institutions, gem processing factories, and by collectors, ensuring reliable results for all your gemstone evaluation needs.