Portable CL-181 Gem Refractometer & Diamond Tester with Flashlight

This compact and versatile device combines the functionality of a gem refractometer and a diamond tester, perfect for both professional gemologists and jewelry enthusiasts. It features a portable design, making it easy to carry and convenient for on-the-go analysis. The integrated flashlight enhances visibility, ensuring accurate readings and identifying various gemstones with precision. This user-friendly tool is essential for authenticating and examining precious stones, providing reliable results wherever you are. Scope of application: Jewelry Interval value: 1.30~1.81ri Measuring range: 1.30~1.81 Manufacture country: China Instructions included: No