The Gem Refractive Index Liquid 1.79 is a high-quality fluid engineered for accurate measurement of various colored gemstones, including Ruby, Sapphire, and Topaz. Designed for professional gemologists and jewelry experts, this precision liquid ensures reliable refractive index readings with minimal evaporation.

With an RI rating of 1.79, it delivers high-performance results close to industry standards, making it an indispensable tool in gem identification. It comes with an illustrated instruction manual, ensuring straightforward application and ease of use.

For advanced gemstone testing, the Gem-A Refractometer Fluid (RI 1.81) is another essential solution. This high-precision RI liquid is specifically designed for gem refractometers, providing stable, long-lasting performance with a minimal evaporation rate. Whether testing diamonds, rubies, sapphires, or quartz, this professional-grade fluid guarantees accurate gemstone identification every time.

Why Choose This Refractive Index Liquid?

• High Performance: RI rating of 1.79 & 1.81 for optimal gem testing.
• Precision Measurement: Accurate readings for a wide range of gemstones.
• User-Friendly: Includes an illustrated manual for easy operation.
• Versatile Compatibility: Ideal for testing Ruby, Sapphire, Topaz, Quartz, Beryl, and Glass.
• Professional Essential: A must-have for jewelers, gemologists, and laboratory professionals.

Whether you need an RI 1.79 or 1.81 solution, these refractive index liquids are essential for accurate gemstone identification and professional gem testing.