10 Best Jewelry Diamond Testers 2025

Welcome to our Top 10 product reviews for Jewelry Diamond Testers! We reviewed and scored many products in the diamond and gold tester subcategory and found products ranging from a 7.5 score up to a 9.2 score. But there was one item that stood out from the rest. Introducing the HDE Diamond Tester Pen! This high accuracy professional jeweler tool is perfect for both novices and experts alike. With its easy-to-read LED indicator and compact design, this diamond tester pen is a must-have for anyone in the jewelry industry. Whether you're a hobbyist or a professional, the HDE Diamond Tester Pen will help you identify genuine diamonds from fake ones with ease. Don't settle for less than the best, choose HDE for all your diamond-testing needs!