Product Compact Diamond Tester for Accurate Gemstone Verification - Compact Design: This diamond tester features a highly compact design, making it an essential tool for distinguishing between genuine and fake diamonds with ease and precision. - Convenient Accessories: Each tester comes equipped with a PU case and a small testing platform, perfect for securely holding loose stones during testing to ensure accurate results. - Clear Indicators: Equipped with an LED light and audio result indication, this tester provides clear, immediate feedback, allowing you to quickly verify the authenticity of your gemstones. - Versatile Calibration: The tester offers simple calibration for stones of various sizes, ensuring versatility and adaptability in your gemstone testing process. - User-Friendly Operation: Designed for ease of use, this diamond tester is straightforward and intuitive, making it an ideal choice for beginners and experienced users alike. Enhance your gemstone verification process with this compact and reliable diamond tester, combining user-friendly features with professional accuracy for confident and efficient testing.