Professional Diamond Tester Pen Professional Diamond Tester Pen Specifications: Product Name: Professional Diamond Tester Pen Function: Portable electronic diamond identifier Materials Tested: Jewelry, jade, rub, and stones Display: LCD and LED indicators Power Source: DC 9V battery (not included) Features: Fast and Accurate Testing: Detects whether diamonds or gemstones are real or false in seconds, providing quick and precise results for jewelry verification. User-Friendly Operation: Simple to operate with clear instructions. Genuine diamonds emit sounds and lights testing >=9 on the tester for easy identification. Portable and Convenient: Compact design makes it easy to carry. Ideal for jewelers and enthusiasts for on-the-go testing. Equipped with LCD displays and LED indicators for clear readings. Safety and Precision: Designed for safe use with specific guidelines for testing diamonds and other gemstones, ensuring accuracy and preventing damage to the items tested. Responsive Customer Service: We offer attentive customer support for any questions or issues. The product comes with a user manual for easy setup and use. Package Includes: 1 x Diamond Tester 1 x User Manual