Customers can actually see for themselves the value they are getting! Gemlight is lightweight and compact but big enough for the professional to grade diamonds and colored stones. It features a verilux and U.V. long wave light has a deep grading cavity and a 90% cool white background which makes grading diamonds and detecting fluorescence in colored stones a breeze. Gemlight comes with a protective case diamond cloth and bulbs. Requires four AA batteries (not included).