Professional Digital Gemstone Refractometer - Accurate Jewelry Tester Tool for Gem Identification, Measures Refractive Index 1.300-3.000, Error ±0.005, Ideal for Jade, Crystal, and More.

Experience precision and reliability in gemstone identification with our advanced Gemstone Refractometer. Designed for jewelers and gem enthusiasts alike, this essential tool features a large LCD backlight display, making it easy to read measurements even in low-light conditions. With an impressive accuracy of ±0.005 and a measurement range of 1.300 to 3.000, it is perfect for evaluating various gemstones including jade, Hetian jade, and diamonds. Easily assess the refractive index of polished stones to determine authenticity and quality. For instance, jade should show a refractive index around 1.66, while Hetian jade typically measures at 1.61. Our refractometer also effectively differentiates between natural and synthetic diamonds, distinguishing those with a refractive index of 2.417 from imitations that fall between 1.98 and 2.2. Crafted with user convenience in mind, this lightweight device (only 0.8 kg) is powered by a robust 700mA lithium battery, offering up to 10,000 uses on a single charge. Its compact size (13.5 x 7.8 x 2.4 cm) makes it portable enough for on-the-go assessments or for use in your jewelry shop. Whether you’re appraising gems for resale or simply indulging in your passion for gemstones, this refractometer is your go-to tool for accurate readings. Elevate your jewelry evaluation process and ensure you make informed decisions with our reliable Gemstone Refractometer.

• Discover our Gem Refractometer, crafted from Durable Aluminum Alloy for a Scratch-Resistant Surface. Designed for Precision Testing, it features an ABS Engineering Plastic Power Switch and Triple Insulation Protection to Minimize Leakage Risk. Experience Reliable Performance and Stability in Your Gemstone Assessments. Ideal for Jewelry Professionals and Enthusiasts Alike.
• Discover the essential Jewelry Tester Identification Tool for gem enthusiasts. This non-destructive tool quickly and accurately measures the refractive index of gemstones, with a test range of 1.300-3.000. Perfect for both professionals and hobbyists, it enhances your gem identification process while ensuring the integrity of your precious stones.
• Discover the Versatile Gemstone Refractive Index Tester, ideal for identifying both Single and Double Gemstones. This essential tool is designed for measuring the Refractive Index of Diamonds and Colored Gemstones, making it perfect for jewelers and enthusiasts alike. Enhance your gem assessment with precision and ease, ensuring you get accurate results every time.
• 【Working Principle】: The working principle of the refractometer is based on total internal reflection. The refractive index is a very important optical parameter, and the characteristics of gemstones can be determined based on this parameter
• 【Wide Range of Applications】: Quickly and accurately identify single and double gemstones, diamond colored gemstones, designed for measuring the refractive index of gemstones and solid materials