Presidium is a well-known brand specializing in gemstone and diamond testing equipment. Their tools help in identifying real diamonds, moissanite, and other gemstones. Popular products include the Presidium Gem Tester (PGT) and Presidium Multi Tester (PMuT).
Their tools help in identifying real diamonds, moissanite, and other gemstones. Popular products include the Presidium Gem Tester (PGT) and Presidium Multi Tester (PMuT).