Our Professional Diamond Tester Is Designed To Accurately Identify Real And Fake Diamonds. The Lcd Display And Led Indicator Can Easily Distinguish Real Diamonds From Other Imitation Gemstones. The Diamond Tester Is Designed To Provide Fast And Accurate Results. You Be To Know If Something Is Fake In Seconds. It Is Compact And Easy To Use When You Need It. This diamond selector tester designed for quick, precise, and safe diamond testing. It undergoes rigorous testing and quality control to provide you with reliable test results, instilling confidence in your diamond purchases and assessments. The Diamond Tester Pen is simple to operate. Just lightly touch the pen tip to the of the jewelry, and it provide test results within seconds. Green light indicates a real diamond, while red light indicates the possibility of a synthetic diamond or other gemstone. Easy To Operate And Accurate Test. Perfect For Both Professionals And Hobbyists, This Tester Tool Is A Must-Have For Any Jewelry-Making Enthusiast. Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , the Philippines,Taiwan and so on. Voltage:DC12V Color: As Shown Material: Metal+Plastic Package Contents: 1 * diamond tester 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.