PRESIDIUM DIAMOND VERIFICATION INSTRUMENT

Sorting machines for gemstones; Sorting machines for diamonds

Gemological instruments, namely, electronic diamond and moissanite checkers in the nature of measurement, testing, and verification instruments, for checking thermal and electrical conductivity of diamonds and other gemstones, electronic gemstone checkers in the nature of measurement, testing and verification instruments for checking thermal conductivity and reflectivity of gemstones; counting machines for gemstones; counting machines for diamonds