Gauge Diamond Presidium Gem Computer Gauge.
Another premium product from Presidium Instruments. Presidium Gem Computer Gauge estimates the weight and identifies gemstones with much greater precision and consistency. Covers 74 gemstones and 9 different shapes. Direct carat conversion for round brilliant cut diamond. 0.01mm resolution.
Weight computation through direct measurement or keypad entry. USB interface. CD-Rom with 133 gemstones. S.G. Dictionary. Gemstone estimator. 1 year factory warranty.
Remember when taking measurements always reference from from two different sides of the diamond.