Presidium

The Presidium PDT Duo Tester combines two distinct testing methods into a single professional instrument, giving jewelers and gemologists the tools...

Is it a diamond or moissanite? Ruby or garnet? Sapphire or tanzanite? Emerald or jadeite? The Presidium Gem Tester II (PGT II) provides fast, labor...

The Presidium Stone Rest is a testing accessory designed to hold loose stones securely while you work with Presidium gemstone testers. By keeping s...

The Presidium Dial Gauge (PDG) is a precision millimeter gauge designed for gemstone measurement, weight estimation, and ring sizing. Functioning s...

Keep your inside ring engraving machine performing at its best with this replacement diamond tip. Designed to fit a wide range of popular inside ri...

The Presidium OTI All-In-One Diamond Tester combines dual optical and thermal testing technology into a single probe, delivering fast, reliable dia...

The Replacement Probe Pen PS2-2 is a genuine titanium probe pen designed as a direct replacement for the Presidium Gem Tester II (PGT II) and Presi...

The Presidium MPIREM Inside Ring Engraving Machine is a compact, precision-built diamond drag scratch engraver designed for inside ring engraving. ...

The Presidium Electronic Gemstone Gauge (PEGG) delivers precision far beyond what traditional dial-type gauges can offer. Reading to 0.01 mm, this ...

The Presidium Gem Computer Gauge (PCGC) delivers professional-grade gemstone measurement, weight estimation, and identification in a single bench i...