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...

An electronic gemstone gauge measures loose stones at the bench more finely than a dial gauge can. The Presidium Electronic Gemstone Gauge (PEGG) r...

A gemstone gauge measures a stone at the bench and turns those measurements into an estimated weight, and this one does the arithmetic for you. The...

Read how fast a stone conducts heat and put a name to it at the bench, mounted or loose. The Presidium Gem Tester II (PGT II) gives jewelers and ge...

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

Confirm what a stone is before you buy it, set it or quote a repair on it. The Presidium OTI All-In-One Diamond Tester combines dual optical and th...

Screen a stone for diamond in seconds, at the bench or across the counter on a purchase. The Presidium PDMT-A DiamondMate is a handheld diamond tes...

Test a stone two ways with one press of the button, so a diamond reading is confirmed before the piece leaves the bench. The Presidium PDT Duo Test...

Put a name to a colored stone at the bench instead of sending it out. The Presidium Gem Indicator (PGI) is the only handheld tester specifically de...

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...