Presidium

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...

Presidium AC Adaptors provide reliable mains power for a range of Presidium gem-testing instruments, replacing or supplementing battery operation. ...

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

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...

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

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

The Presidium PDMT-A DiamondMate is a handheld diamond tester that uses thermal conductivity to quickly separate diamonds from most known simulants...

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

The Presidium Gem Indicator (PGI) is the only handheld tester specifically designed for colored gemstones. Using advanced thermal conductivity tech...

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 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...