High Accuracy Professional Jewelry Refractive Index Tester Tool, LCD Display, Measures 1.300-3.000 for Diamonds, Gold & Silver Jewelry Identification

This gemstone refractometer is a precision tool designed for the identification of polished gemstones, featuring a large LCD backlight for clear readings. It measures refractive indices from 1.300 to 3.000 with an accuracy of 0.001 and an error margin of ±0.005. Ideal for testing various gemstones, including jade and Hetian jade, it helps determine if their refractive indices match expected values (1.66 for jade and 1.61 for Hetian jade). It also distinguishes between natural and artificial diamonds, with natural diamonds having a refractive index of 2.417. ▶Specifications:Measuring range: refractive index 1.300-3.000Measurement error: + -0.005Measurement accuracy: 0.001Battery life:10.000 TimesPower supply: 700mA Lithium BatteryProduct Size: 13.5x7.8x2.4cm(5.31x3.1x0.94inch)Net weight: 0.8kg(1.76lbs)▶Products include:1*Professional Digital Gemstone Refractometer2*calibration block (1*1.487, 1*1.806)1*aluminum box1*instruction manual▶Note: Slight color variations may occur due to lighting, and a 1-3cm measurement error is possible due to manual handling.

• Discover the Durable Aluminum Alloy Refractometer, designed for precision and stability. This robust tool features a Scratch-Resistant Surface and a Reliable ABS Power Switch, ensuring safe operation. Ideal for both hobbyists and professionals, it provides accurate measurements with ease. Elevate your analysis with this essential instrument for various applications.
• Introducing our Precision Refractive Index Measurement Tool, expertly crafted for non-destructive and accurate measurement of gemstones' refractive index values. With a wide range from 1.300 to 3.000, this essential tool is perfect for gemologists and jewelers seeking reliable results, enhancing their expertise in the field. Optimize your gem evaluation process today!
• Introducing the Convenient Mstone Uring, designed for accurate crystal identification! This innovative tool eliminates the need for refractive oil; simply position it near the platform for instant readings. Effortlessly determine if a mineral is a Uniaxial or Biaxial Crystal, making it an essential addition to your mineral collection or laboratory setup.
• 【Advanced Working Principle】Utilizes Total Internal Reflection to measure the Refractive Index, a critical optical parameter for identifying and characterizing various gemstones with precision. This innovative tool is essential for Gemstone Enthusiasts and Professionals alike, ensuring accurate assessments and enhancing your gemstone collection experience.
• Enhance your gemstone evaluation with our Precision Refractive Index Tester. This versatile tool is ideal for identifying single and double gemstones, including Diamonds and Colored Stones. Designed for professionals, it provides reliable refractive index measurements of various gemstones and solid materials, ensuring accurate results every time.