R. I. Liquid

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Gem Master R.I. Liquid nD 1.81: Professional Grade Refractive Index Fluid for Gemmological Analysis

The Gem Master R.I. Liquid nD 1.81 is a specialized, high-precision optical contact liquid meticulously formulated for use with gemmological refractometers, serving as an indispensable tool for professional gemologists, jewelers, and educational institutions in the accurate identification and evaluation of gemstones.

Key Features and Professional Advantages:

Precision Refractive Index Measurement: Engineered with a specified refractive index (nD) of 1.81, this liquid facilitates the precise measurement of a gemstone’s refractive index when utilized with a refractometer, a critical parameter for gemstone identification and authentication.
Optical Contact Medium: It acts as an optical coupling agent, creating a seamless interface between the refractometer’s prism and the gemstone, minimizing air gaps and ensuring optimal light transmission for clear and accurate readings.
Enhanced Gemstone Examination: Beyond RI measurement, this liquid can also effectively reduce or eliminate surface glare on gemstones, enabling a clearer view of internal characteristics, inclusions, and potential treatments (e.g., diffusion treatments), crucial for comprehensive appraisal.
Professional-Grade Formulation & Packaging: Bottled in protective amber glass bottles to prevent degradation from UV light, each unit contains 10 grams (approximately 3.2mls) of the certified solution. The packaging includes a detailed information and instruction sheet, ensuring proper handling and usage.
Optimized Application & Safety: Designed for professional laboratory and workplace environments, it features a proprietary applicator rod integrated into the cap for precise, single-drop delivery, which minimizes waste, reduces vapor emissions, and inhibits accidental ingestion in accordance with international health and safety regulations.

Intended Users:

Gemologists & Valuers: Essential for accurate gemstone identification, differentiation, and appraisal based on refractive index and internal characteristics.
Jewelry Professionals: Valuable for verifying material properties in gemstone sourcing, setting, and quality control during jewelry creation and repair.
Educational Institutions: An ideal tool for teaching gemology, optics, and material science principles in laboratory settings.