Our Ruby Tester is a truly reliable source for finding synthetic rubys from earth-mined ones.
This ruby tester from Presidium instantaneously identifies synthetic flame fusion rubies using the UV transmittance ability of ruby gemstones. The SRI works on both loose and mounted stones. Utilizes safe UV light with auto cut-off and gives quick results with clear indicator lights. Designed in a handy portable size. Warranty on this item is 1 year.