Ideal for travelling comes with built-in yellow LED.
Battery-Operated : 2X CR2032 Li-On

A Polarized loupe helps in examining substances in polarized light to obtain or determine the stress in glass and other substances. It is simply one of the tools that analyze the light that passes through the gemstone. The Polariscope can not be used to test opaque or assembled stones.

In Gemology, it helps to obtain optical properties of transparent to translucent gem materials. Which means it can identify if a stone has singly refractive (SR), doubly refractive (DR) or is an aggregate (AGG). Some stones split the light (DR) and some not (SR) which gives them there unique property and easy to identify them through their light refraction property.