New, revised, expanded edition of the first and only book of its kind. Covers the latest gems, synthetics, treatments, and instruments. Easy to use. Practical. Non-technical. Shows how to identify diamonds, colored gemstones, and pearls, and separate them from fakes and look-alikes. Explains what instruments are needed, how to use them, where to get them, and what should be seen for each gemstone.No science background necessary.Faster than you can imagine, anyone can learn to identify most of the gems and imitations found in the marketplace. This practical volume is the key to avoiding costly mistakes and recognizing profitable opportunities. Essential reading for collectors, investors, jewelry lovers, hobbyists, jewelers, antique dealers, and gemology students. With this highly accessible guide, anyone can begin to master gem identification.Selected Contents:Setting up a basic lab.Description of Each Instrument: What It Will Show & How to Use It.Dark Field Loupe - Synthetic Emerald Filters - Immersion Cell - Synthetic Diamond Detector - Loupe - Chelsea Filter - Electronic Diamond Tester - Refractometer - Ultraviolet Lamp - Microscope - Spectroscope - Polariscope - DichroscopeWhat to Look For, Gem by GemAntique & Estate Jewelry - The True Test for the Gem Detective.Dyeing - Composite Stones - Foil Backing - SubstitutionsAppendices: Charts and Tables of Gemstone Properties, Schools, Laboratories, and more.