Portable Gemological Gem Refractometer with LED Illumination
Ultra-precise refractive index measurement (1.35–1.85 range) for gemstone identification and authentication. Built-in LED illumination ensures accurate readings in low-light conditions. Durable aircraft-grade aluminum housing with scratch-resistant optical glass for long-term professional use. Compact, lightweight design ideal for field gemologists, jewelers, and lapidaries. No external power needed—operates on standard batteries. Includes a protective carrying case for safe transport to labs, mines, or trade shows. Calibration fluid and user manual included for immediate use. Trusted by professionals for quick, reliable gemstone verification.