Portable Refractometer for Jewelry with Built-in LED Light, Measurement Range 1.30-1.81ri, Accuracy ±0.002 - Essential Tool for Jewelry Repair and Identification

This refractometer is specifically designed for measuring the refractive index of gemstones and solid materials. Its minimalist design combines professionalism with ease of use, making it an essential tool for effective testing.The refractive index is a critical optical parameter for gemstones, essential for assessing their gloss and type. Each gemstone has a unique refractive index that assists in identification. This parameter is also vital for measuring birefringence and distinguishing between uniaxial and biaxial crystals.Product specifications:- Measuring range: 1.30~1.81ri- Minimum graduation value: 0.01ri- Accuracy: ±0.002- Package Size: 220*105*67mmProduct packaging includes:1* refractometer2* Flashlights (batteries not included)This refractometer is recognized as one of the most important test instruments available, primarily used to measure how light is bent or refracted through a stone.Note: Refraction oil and batteries are not included. Please be aware that slight color variations may occur due to lighting during photography, and a manual measurement error of 1-3cm is possible.

• Professional Gemstone Evaluation: The Portable Refractometer for Jewelry is expertly crafted to measure the refractive index of gemstones and solid materials. Its sleek design not only enhances its professional look but also simplifies usage, making it an indispensable tool for jewelry repair and identification.
• Rapid and Accurate Identification: This refractometer features a measurement range of 1.30-1.81ri, allowing for quick and accurate identification of gemstones. It effectively differentiates between diamonds, moissanite, and colored stones, significantly accelerating the identification process during jewelry evaluations.
• Durable and Reliable Construction: Made from high-quality all-metal materials, this Portable Refractometer for Jewelry is designed for low battery consumption, ensuring prolonged use. Its sturdy build guarantees long-lasting performance, making it a trustworthy tool for testing.
• User-Friendly and Accessible Design: This refractometer is not only highly accurate but also easy to use, thanks to its lightweight and compact form. The integrated LED light improves visibility, allowing you to distinguish between various gemstones, regardless of whether they are opaque or transparent.
• Essential Instrument for Jewelry Professionals: Specifically engineered to measure the refractive index, this Portable Refractometer for Jewelry is a vital instrument for gemstone assessment. It provides essential insights into how light refracts through a stone, delivering important information for jewelry repair and identification.