Gemstone Refractometer with LCD Display - Jewelry Tester for Diamonds, Gold, Silver - Refractive Index 1.300-3.000 - Essential Identification Tool for Gem Enthusiasts

Discover the precision and reliability of our Professional Gemstone Identification Refractometer, an indispensable tool for gemologists, jewelry designers, and gemstone enthusiasts alike. Designed to accurately identify a wide range of gemstones—including diamonds, sapphires, rubies, emeralds, and more—this refractometer operates efficiently within a measurement range of RI 1.300 to 3.000. Utilizing the principle of total internal reflection, our refractometer measures the refractive index of gemstones, a key optical parameter that differentiates gem types based on their unique properties. This ensures that you can make informed decisions whether you're creating exquisite jewelry or assessing gemstone value. **Key Features:** - **High Precision Measurement:** With an accuracy of ±0.005 and a minimum scale value of 0.001, you can trust in the reliability of your readings. - **User-Friendly Display:** The large backlit LCD screen makes it easy to read measurements in any lighting condition. - **Durable Design:** Constructed with a robust aluminum alloy table, this refractometer is built to withstand regular use. - **Convenient Operation:** The insulation switch made of ABS material enhances safety and usability. - **Long-lasting Battery:** Equipped with a built-in 700mAh lithium battery, it supports up to 10,000 measurements, making it perfect for extensive testing sessions. **Specifications:** - Measuring Range: Refractive Index 1.300–3.000 - Error Margin: ±0.005 - Accuracy: 0.001 - Battery Type: Lithium Battery (700mAh) - Battery Life: Approximately 10,000 tests - Dimensions: 13.5×7.8×2.4 cm - Weight: 0.8 kg **What’s Included:** - 1 Gemstone Refractometer - 2 Calibration Blocks (1*1.487, 1*1.806) - 1 Aluminum Carrying Case - 1 Instruction Manual Elevate your gemstone identification process with our Professional Gemstone Identification Refractometer, ensuring precision and confidence in every measurement. Whether for professional use or personal interest, t...

• ◆【Professional Gemstone Identification Tool】This Gemstone Refractometer offers quick and accurate measurement of the refractive index of gemstones without causing damage. It also evaluates various optical characteristics. Measuring range: refractive index 1.300-3.000 with an accuracy of 0.001 and an error margin of ±0.005. Perfect for jewelers and gem enthusiasts alike.
• ◆【Effortless Gem Testing】This Gem Identification Tool eliminates the need for refractive oil. Just position the gem near the platform for immediate readings. This streamlined approach ensures accuracy while preserving the quality of delicate gemstones, making it an essential device for gem enthusiasts and professionals alike.
• ◆【Clear Reading & Extended Battery Life】The Jewelry Tester Identification Tool offers a Large LCD Screen for excellent visibility in low-light conditions. With a Rechargeable 700mAh Lithium Battery, this device supports up to 10,000 Measurements per charge, making it a reliable choice for gem enthusiasts and professionals alike.
• ◆【Durable Refractometer Design】This Gem Refractometer features a robust Aluminum Alloy construction that ensures a Scratch-Resistant and Stable Work Surface for accurate measurements. Designed with an ABS Engineering Plastic Power Switch and Triple Insulation Protection, it effectively minimizes the risk of Leakage, making it perfect for Gemstone Testing and Analysis.
• ◆【Versatile Material Compatibility】The Gemstone Identification Tester is designed for both uniaxial and biaxial crystals. This jewelry calibration testing tool efficiently identifies single and double gemstones with precision. Ideal for solid materials needing refractive index verification, it ensures accurate results for all your gemstone evaluation needs.