Products

Scales

The Presidium Carat Scale-50 is the first portable carat scale to be certified “Legal For Trade” by the U.S. National Conference of Weight and Measurement.

The Presidium Carat Scale-100 is an affordable convenient scale that measures gemstone weights up to 100 carats with conversion to grams (20grams).



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Engraver

A compact and sturdy engraving machine that provides ease of customization by engraving lettering on inside ring surfaces.

User-friendly engraving instrument that comes with an engraving diamond tip, a circular dial template, a complete set of operating instructions, a dust cover, and five brass sample rings.



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Synthetic Diamond Testers

Enhanced with additional features, the Synthetic Diamond Screener II now tests for diamond melees as small as 0.02 carats with instantaneous results, through the measurement of UV absorption.

Helps to screen out Type IIa colorless diamond, which is likely to be synthetic and created through chemical vapor deposition (CVD) or high pressure high temperature (HPHT) syntheses, from the natural Type Ia colorless diamond.



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