My Recommended Tools for Gemstone Identification
These are tools and references that I use and recommend. I don't recommend cheap tools often found on eBay.
Gemology Calculator
A spreadsheet program that calculates the Optic Sign, Birefringence and specific Gravity of your stone based on a few simple measurements.
Mac, iPad, iPhone version. Requires Apple Numbers spreadsheet app. The will download as a ZIP file.
Gemology Tools Pro
Gemstone Software for the Professional Gemologist, student or gemstone enthusiast. Includes Gemstone Database of over 500 gems, gemstone separator, inclusion gallery and much more.
Available from: Gemology Tools Pro
Gem Identification Made Easy
Very handy reference book, good for all levels. Find it on Amazon
Antoinette Matlins