Digital Gemstone Refractometer with LCD Screen, Professional Jewelry Tester for Refractive Index, Identify Jade, Crystal, Diamonds, Precious Stones

Product InformationMeasurement range:Refractive index 1.300-3.000Measurement error:+-0.005Measurement accuracy: 0.001Power Supply:700MA LITHIUM BATTERY; BATTERY LIFE:10.000 TIMESProducts include:Refractometer * 1Note:1.Please allow 1-2cm errors due to manual measurement, note that you donot mind before order.2.Due to the differences between different monitors, the picture may not reflect the actual color.

• Precision-Crafted Aluminum Alloy Construction: Engineered with a scratch-resistant hard aluminum alloy work surface and an ABS engineering plastic power switch. Built-in triple insulation protection effectively blocks leakage risks, delivering stable, long-lasting performance for professional gem testing environments.
• High-Accuracy Digital Gemstone Refractometer: Equipped with high-sensitivity sensors and a clear LCD screen, this jewelry tester measures refractive index non-destructively with a range of 1.300–3.000, accuracy of ±0.001, and measurement error of just ±0.005. Quickly determines optical characteristics including uniaxial or biaxial crystal properties.
• No Refractive Oil Required: Simplified test method eliminates the need for messy refractive oil. Simply bring the sample close to the measuring platform for instant, accurate readings—saving time and preserving sample integrity.
• Advanced Total Internal Reflection Technology: Operates on the principle of total internal reflection to capture critical optical parameters. Refractive index data enables precise identification of gemstone types, optical behavior, and material authenticity.
• Versatile Professional-Grade Identification Tool: Ideal for quickly and accurately identifying single and double refractive gemstones, moissanite, diamonds, colored stones, crystals, and solid materials. Essential equipment for jewelers, gemologists, pawn shops, and lab professionals.