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1.30 ~ 1.81 RI Range Gemological Refractometer + Index oil Flashlight Polarizing

Gemstone Refractometer – Refractive Index Measurement (RI 1.30–1.81)

SKU: CL-181
AU$272.00Price
Accurately identify and authenticate gemstones with this compact gemological refractometer. Measures RI from 1.30 to 1.81 and helps distinguish between singly and doubly refractive stones—ideal for gemologists, jewelers, and traders.
 
Set Includes:
    • 1  x Gem Refractometer
    • 1 x Polarizing Filter
    • 1 x Monochromatic Light Filter
    • 1 x Mini  Flashlight
    • 1 x 1.5V AAA Battery
    • 1 x Storage  Box
    • 1 x Refractometer Index Reference List (For 77 common gemstones, i.e. Calcite, Jadeite,  Quartz etc.)
    • 1 x Quick  Start Guide

          The Gemstone Refractometer is an essential tool for anyone working in the gem and jewelry industry. Designed to measure the refractive index (RI) of polished gemstones from 1.30 to 1.81, it helps quickly determine the identity of precious and semi-precious stones. Lightweight and portable, it’s the perfect instrument for both field use and laboratory environments.

          This refractometer is capable of distinguishing between isotropic and anisotropic materials, allowing users to detect whether a gemstone is singly or doubly refractive (uniaxial or biaxial). Its compact design, low battery consumption, and reliable optical performance make it a must-have for gemstone identification.

          Whether you’re verifying authenticity or classifying unknown stones, this refractometer provides accurate, repeatable results—delivering confidence to gemologists, traders, and collectors alike.

          Key Features:

          • ✅ Measures Refractive Index (RI): Covers 1.30 to 1.81 RI range for gemstone analysis

          • ✅ Identifies Optical Properties: Distinguishes isotropic vs. anisotropic stones

          • ✅ Fast & Accurate Readings: Ideal for gemstone identification and verification

          • ✅ Low Power Consumption: Portable and efficient for daily use

          • ✅ Quality Construction: Meets strict safety and performance standards

          • ✅ Trusted by Professionals: Used by jewelers, traders, and gem labs worldwide

          Ideal For:

          • Gemologists and jewelry appraisers

          • Gemstone dealers and traders

          • Laboratory testing and gemstone education

          • Field identification at gem shows or mines

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