High Precision Gemstone Refractometer, Large LCD Display, 1.300-3.000 Refractive Index, ±0.005 Error, 700mAh Battery, Essential Jewelry Tool for Gemologists

Looking to distinguish genuine gemstones from imitations or confirm your valuable discoveries? Our Gemstone Refractometer delivers professional-grade accuracy at your fingertips, making it a must-have for gem enthusiasts, collectors, and professionals. **Key Features:** - **No Oils Needed:** This innovative refractometer eliminates the need for messy refractive oils, enabling quick, non-destructive measurements. Simply place your gem on the platform for instant results. - **Trusted Precision:** With a high-precision sensor, our digital refractometer covers a refractive index range of 1.300 to 3.000, offering an accuracy of ±0.001. - **Durable & Portable:** Crafted from high-strength aluminum alloy, this lightweight refractometer (250g) is both scratch-resistant and easy to carry anywhere. - **Extended Battery Life:** Powered by a 700mAh rechargeable battery, it supports thousands of measurements per charge, ensuring reliability. **Versatile Applications:** - **Jade & Nephrite:** Confirm authenticity by measuring refractive indices (e.g., 1.66 for jadeite, 1.61 for nephrite). - **Diamonds & Simulants:** Differentiate natural diamonds (RI 2.417) from common imitations like cubic zirconia. - **Colored Gemstones:** Identify single and double crystal gemstones, as well as other polished materials with confidence. **Technical Specifications:** - **Product Name:** Gemstone Refractometer - **Measurement Range:** RI 1.300 - 3.000 - **Accuracy:** ±0.001 - **Measurement Error:** ±0.005 - **Battery:** 700mAh Rechargeable - **Size:** 135 x 78 x 24 mm - **Weight:** 250g **Package Includes:** - Gemstone Refractometer x 1 - Calibration Blocks (1.487 & 1.806) x 2 - Aluminum Box x 1 - Tweezers x 1 - User Manual x 1 **Note:** For optimal performance, calibrate using the included blocks.

• Gem Refractometer with LCD Display, Professional Jewelry Tool for Precise Gemstone Analysis, Ideal for Gem Enthusiasts and Professionals, Provides Accurate Refractive Index Measurements to Identify and Evaluate Gemstones Effectively, Essential Instrument for Reliable and Easy Gemology Use.
• Gem Refractometer for Jewelry Industry, Easy to Use Without Refractive Oil, Includes Two Calibration Blocks (1.487 & 1.806) for Precise Measurements, Ideal for Gem Enthusiasts and Professionals
• Digital Gemstone Refractometer for Jewelry Professionals, High-Precision Measurements with Refractive Index Range 1.300 to 3.000, Accuracy 0.001, Non-Destructive Analysis for Diamonds and Colored Gemstones, Essential Quantitative Data for Informed Decisions
• Professional Gem Refractometer for Jewelry Enthusiasts and Gemologists, High-Precision Sensor with Advanced Internal Reflection Technology, Measures Refractive Index for Accurate Gemstone Identification
• Portable Gem Refractometer with High-Strength Aluminum Alloy, Clear LCD Backlit Display for Precise Readings, Lightweight 250g Design with Insulated ABS Switches, Ideal for Gem Enthusiasts and Professionals