Essential Gemologist's Tool: This handheld LED polariscope is specifically designed for gemstone examination, distinguishing between isotropic and anisotropic stones with its advanced optical properties. Its dual lens functionality enhances the accuracy of each analysis. Advanced Double Lens System: Featuring a double lens design, this polariscope provides superior magnification and clarity. This feature is crucial for detailed gemstone evaluation, allowing for precise identification and analysis of gemstone structures and compositions. Optimal Illumination with Built-in LED: Equipped with a high-efficiency LED light, this tool ensures consistent and clear lighting for thorough optical examinations. The LED illumination highlights every detail, making it easier to identify unique gemstone features even in low-light conditions. Color: Black Material: Metal Package Contents: 1 x Polariscope 1 x Carrying case Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.