Gem Identification Made Easy is the first and only book that explains in non-technical terms how to identify diamonds and colored gems and separate them form imitations and look-alikes. The book's approach is direct and practical, and its style easy to understand. In fact, with this highly accessible guide, anyone can begin to master gem identification. Using a simple, step-by-step system, the authors explain the proper use of essential but uncomplicated instruments that will do the identification tasks, what to look for gemstone by gemstone, and how to set up a basic lab at modest cost. Three of the instruments are inexpensive, portable, pocket instruments which, when used together, can identify almost 85% of all precious and popular stones. The key to avoiding costly mistakes and recognizing profitable opportunities is know both what to look for and what to look out for. Gem Identification Made Easy will help you: Open your eyes to the types of imitations, synthetics, look-alikes and fakes in the gem market today. Learn how to tell the difference between them. Quickly spots synthetics, including synthetic emeralds and diamonds, filled diamonds, diffused "blue" sapphires and "red" rubies, HPHT-treated diamonds and much more. Determine how to spot the newest "composite" imitations. Discover how to identify new gems such as "red" emerald, "Mandarin" garnet, and North Carolina's chromium rich emeralds. Discover new treatments such as surface coatings to create "fancy color" diamonds and improve or change the color of many gemstones. Know when to seek help from a professional gemologist or lab. Become more professional in you business or hobby. The contents are organized into 18 major sections: (1) Before Beginning, (2) Setting Up the Lab, (3) Proper Lighting for Gem Identification, (4) The Loupe and Dark-Field Loupe, (5) The Chelsea Filter and Synthetic Emerald Filter, (6) The Dichroscope, (7) The Ultraviolet Lamp, (8) The Refractometer, (9) The Microscope, (10) The Spectroscope, (11) The Polariscope, (12) The Diamond-Type Spotter and Blue Diamond Tester - Essential tools for Diamond Buyers, (13) The Immersion Cell, (14) The Electronic Diamond Tester, (15) The Carbide Scriber - An Essential Tool for Diamond Buyers, (16) The "Synthetic Diamond Detectors", (17) Antique and Estate Jewelry - The True Test of Gem Identification Skill, and (18) A New Type of Composite Imitation. Covered in appendices are Gemstone Property Tables, Glossary, Recommended Reading, Laboratories That Provide Internationally Recognized Reports of Genuineness and Quality, Where to Go for Additional Gemological Training, International List of Gem Testing Laboratories and Gemologists, International List of Associations, and Gem Identification Suppliers. The Gemstone Property Tables include: Frequently Encountered Transparent Gems by Color, Hardness of Popular Gems, Specific Gravity Table, Refractive Index Tables for Single and Double Refracting Gems, Table of Dispersion, and Table of Birefringence of Gemstones. Other tables include: Suggested Lighting for Gem Identification Instruments, Using the Synthetic Emerald Filter Set to Separate Natural Emerald from Synthetic, Colors Exhibited by Popular Dichroic and Trichroic Gems - by Gem Color, Colors Exhibited by Popular Dichroic and Trichroic Gems - by Gem Family, Gems That Show No Dichroism, Fluorescent Gemstone Chart, Use of Ultraviolet Examination for Separating "Look-Alikes", Phosphorescent Gemstone Chart, Refractive Index of Popular Single Refracting Gemstone Materials, Diamond Types and Which Ones Respond to HPHT Techniques, Diamond Reactions to the SSEF Diamond-Type Spotter, Liquids Used to Immerse Gems for Better Examination, and Synthetic Gemstones and Man-Made Imitations.
Gem Identification Made Easy