For over 19 years, we have been dedicated to the research, development, production, and sales of gemological instruments, gemstone testing tools, and jewelry processing equipment. Our product range includes gemstone microscopes, refractometers, spectroscopes, calcite dichroscopes, polarizing filters, long-wave and short-wave ultraviolet lamps, fiber optic lamps, diamond proportion testers, hardness pens, gem identification kits, CVD/HPHT diamond testers, and gemstone polishing machines. To date, we have obtained over 60 national patents. In addition, we have established long-term collaborations with major jewelry academies in China and have been designated as a technical platform manufacturer for China's Gemstone Identification Competitions.