Product User Handbook PRESIDIUM DIAMOND VERIFICATION INSTRUMENT® Synthetic Diamond Screener II (SDS II) ARI by Presidium Diamond & Moissanite Testers Synthetic Diamond Testers Sam Adamas Diamond Mate (PDMT-A / PDMT-C) Moissanite Tester II (PMT II) Multi Tester III (PMuT III) Colored Gemstone Testers Gem Tester II (PGT II) Gem Indicator (PGI) Refractive Index Meter II (PRIM II) Synthetic Ruby Identifier (SRI) Duo Tester II (PDT-II) Gauges Dial Gauge (PDG) Electronic Gemstone Gauge (PEGG) Gem Computer Gauge (PGCG) Engraver & Scales Inside Ring Engraving Machine – Mini (MPIREM) Carat Scale (PCS-50 & PCS-100) Carat Scale (PCS-100n)