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Gemology Tools

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Version 8.2

GT Pro now includes over 80 Diffraction Spectral Images such as the Ruby on the right

The Most Complete Gemology Software Available (Compare) 

GT Pro in use in 47 countries.

Gemology Tools Professional (Version 8.2 Now Available): Gemology Tools Professional is the most complete gemology software reference available. If you do jewelry appraisals or work with gemstones in any fashion and want to save yourself time, Gemology Tools Professional is a must have. Time is money and Gemology Tools Professional saves you time. Fast, accurate and loaded with gemology information. Just what you need. Learn More.       New! View Demonstration Videos               Only Need GT Gemstones?

Color & Light, the quarterly journal of the International Gem Society calls Gemology Tools "the most complete database of gem information ever assembled." (Spring, 2004)

Gemology Tools Professional is Windows software that contains the most complete gemology reference available. This program is intended for the gemologist/appraiser. Included are such gemology aids as the Gemstone Database which gives you access to information on over 1,950 gemstone species, varieties, trade names and misnomers. Also included are the Diamond Weight Estimator, the Colored Stone Weight Estimator, the Pearl Grader (based on the system developed by The Guide), a diamond cut grading system (devised by NAJA), a round diamond re-cutting analyzer and much, much more. The Gemstone Database provides over 30 facts, properties and characteristics for most gemstones. Over 970 gemstone photographs are included. The Gemstone Database also features the new Gemstone Separator, the easiest way to make a gem identification and the new Inclusion Gallery which provides you with over 275 visual examples of gemstone and diamond inclusions and surface features. With access to over 1,950 gemstone species, varieties, trade names and misnomers you can look up just about any fact, property, characteristic or photograph in just seconds. With over 970 gemstone photographs, rough and cut, you can get a visual representation of many gemstones and gemstone inclusions. You can sort the database by Specific Gravity which gives you a look at the densest (or least dense) gems, or by Refractive Index to see which gems have the highest RI (or the lowest RI). You can use the Visual Crown Angle calculator to get a look at how the crown angle changes when the table width or crown height is changed. You can visit the Inclusion Gallery to view all kinds of inclusions or surface features.

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