Pioneering excellence in Jewelry Testing Equipment for over 50 years, GemOro has established itself as a world-renowned manufacturer and the leading authority in the jewelry industry's most innovative, high-quality, and feature-rich testing equipment. As pioneers in the field, GemOro's testers have earned a reputation for being the undisputed leaders in their class. As the premier manufacturer of testing instruments, GemOro specializes in a wide range of essential gemstones and precious metal testing devices. Their expertise spans across gold, platinum, diamonds, moissanite, and white sapphires, enabling jewelry professionals and enthusiasts to accurately assess and verify the authenticity and quality of their precious stones and metals.