It is the ultimate tool for authenticity detection. With a wavelength of 365 nm, the GEM 10 UV is ideal for identifying amber and diamonds, conducting fluorescence examinations, and validating currency. The ultraviolet light causes amber and diamonds to fluoresce and makes natural jade appear transparent; if not, foreign materials are present. A uniquely designed rotating ring interface allows the user to adjust the light intensity from maximum to zero, providing precisely the required amount of UV light. The Nitecore GEM 10 UV is designed for jewelers but is also perfect for use at crime scenes or in the hands of a hobby mineral enthusiast. The body of the flashlight is made of aircraft-grade aluminum, is waterproof to IPX-8 standards, and is ready for tough field use. An integrated measuring scale makes it easy to determine the size of your gemstones, saving you the space of an additional tool in your case. The following batteries are compatible: NL1823, NL1826, NL1834, and NL1835.