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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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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