Download and read online Gem Identification Made Easy in PDF and EPUB This revised edition covers the latest gems, synthetics, treatments and instruments. It is easy to use, practical and non-technical indicating how to identify diamonds, coloured gemstones and pearls, as well as separating them from fakes and look-alikes. The book explains what instruments are needed and how to use them, where to obtain such instruments and what should be seen for each gemstone. Anyone can learn to identify most of the gems and imitations found in the market place. This volume is the key to avoiding costly mistakes and recognising profitable opportunities.
Download and read online Gem Identification Made Easy in PDF and EPUB Contents: Setting Up a Basic Lab; Proper Lighting; How to Use Each Instrument & What It Will Show; Major Errors and How to Correct Them, and more. Appendixes: Charts & Tables of Gemstone Properties, Schools, Laboratories, Associations and Publications, Readings. Glossary. Index.
Download and read online Colored Gemstones in PDF and EPUB Purchasing coloured gemstones can be a magical experience, filled with excitement and anticipation. But lack of information, error, or misrepresentation can make buying gemstones confusing, intimidating, overwhelming, and costly. With more varieties than ever before to choose from, including altogether new gems, revolutionary new cuts, and new ways to buy gems -- such as internet auctions and TV shopping -- there has never been a more exciting time to buy or collect coloured gemstones. But there are also new high-tech treatments and sophisticated frauds to look out for. Lack of information, error, or misrepresentation can make the thrill of buying a gem or piece of jewellery confusing, intimidating, overwhelming, and costly. Buyers need a source of expert guidance. To help you avoid the pitfalls and keep the magic, Antoinette Matlins, an internationally respected expert on buying gems, puts her insider knowledge to work for you in this easy-to-read, easy-to-use guide. Practical, comprehensive, and easy to understand, the guide offers in depth all the information you need in order to know what to look for and what to look out for, including: what qualifies as a 'gemstone'?; how to evaluate colour -- and its impact on price; deciding between a natural gem and an enhanced gem; coloured gemstone synthesis and treatment; what to ask when buying the stone; what to get in writing; how to get what you want within your budget; price guides for popular gems, opals, and synthetic stones; And much, much more!
Download and read online Diamonds in PDF and EPUB Whether you are buying a diamond for an engagement ring, anniversary, to commemorate a special moment, or for personal pleasure, today it is more important than ever to understand what you are buying. There are new shapes and cuts, fancy colours, high-tech treatments, and sophisticated frauds. There are new ways to buy -- such as Internet auctions and TV shopping. Buyers need a source of expert guidance. Practical, comprehensive, and easy to understand, this book offers in depth all the information you need to buy sparkling diamonds with confidence, including: What is a diamond?; The factors affecting quality differences in diamonds; Diamond grading reports and how to interpret them; How to compare prices; How to spot differences in stones that may appear to be the same quality; How to protect yourself from misrepresentation; Questions to ask when buying any diamond; What to get in writing; How to get what you want within your budget; Important information about buying on the Internet and much more.
Download and read online The Pearl Book in PDF and EPUB With today's finest cultured pearls rivaling diamond, ruby, emerald and sapphire in terms of popularity, rarity and price, more and more people are searching for a reliable source of information to guide them in the fascinating and complex world of pearls-natural, cultured and imitation. This revised and updated 3rd edition is a comprehensive, authoritative guide that tells readers everything they need to know about pearls to fully understand and appreciate them, and avoid any unexpected-and costly-disappointments, now and in future generations.
Download and read online Jewelry Gems the Buying Guide in PDF and EPUB
Download and read online Gemstones of the World in PDF and EPUB Provides detailed information regarding the physical characteristics and unique traits of more than 1,800 precious and semiprecious stones, as well as discussing gemstone structure, production, name origin, and symbolism.
Download and read online Handbook of gem identification in PDF and EPUB
Download and read online Engagement Wedding Rings in PDF and EPUB Traces the history of wedding and engagement rings, and offers advice on selecting a ring
Download and read online Secrets of the Gem Trade in PDF and EPUB Completely revised and expanded with 10 new chapters: Jade / Demantoid Garnet / Natural Nacreous Pearls / Conch Pearls / Sunstone / Moonstone / Peridot / Cobalt Blue Spinel / Red -Pink Spinel / Golconda (Type IIa) Diamonds. Five new introductory essay: Blue-white diamonds / Jadeite / Natural Pearls / Spinel / Feldspars. Plus 165 color photographs (50 additional) which include exclusive images from major museum collections and the latest auction market icons. The definitive book for anyone wanting to learn how the best gemologists in the world evaluate precious gems, and what makes one stone merely a good stone versus a truly fabulous museum quality gem. The author, Richard Wise, is one of the world's foremost gemologists.
Download and read online Gemmology in PDF and EPUB Gemmology is a text for students preparing for the Gemmological Association's Preliminary and Diploma examinations. The book is more expansive and up-to-date than the author's earlier book, Beginner's Guide to Gemmology. The book deals with the practical and theoretical sides of gemmology. Tracing the background and science of gemmology, the book covers the gem material, geological formation, and occurrence of gemstones on the earth. The composition of gemstones from the atoms, elements, molecules, and compounds comprising them is analyzed, and the relationship between chemical composition and durability of the stone is explained. The basics of crystallography is mentioned as a tool toward understanding gemmology after which cleavage, parting, and fracture are done. A gemstone's durability and hardness and how the latter influences engineering tests and the mining techniques are compared. An important test technique to identify unmounted stones is the measure of specific gravity using displacement measurement methods and hydrostatic methods. After more descriptive details are given in identification of gemstones, whether these are synthetic or simulants, through a comprehensive explanation of the materials found in these other gemstones, the fashioning, through shaping or polishing, of gemstones is explained. Emphasis is given on the critical angle in which light rays pass in different rock densities, and then the cutting styles, gemstone polishing, and grading are discussed. Students studying for the Gemmological Association's Preliminary and Diploma examinations, jewelers, lapidarists, and diamond cutters, as well as those engaged in the hobby of gemmology, will find this book helpful and full of information toward their endeavors and hobbies.
Download and read online Practical Gemmology in PDF and EPUB Robert Webster’s highly regarded work, Practical Gemmology, first published in 1943, has been through six editions and numerous reprints and was long considered the standard work for those learning the theory and science of gemmology. This classic, on which professional gemmology courses were founded, has been entirely revised by DeeDee Cunningham to return it to its esteemed place among current gemmological education books. Re-written and expanded, this completely updated book includes new material on high-tech treatments and synthetic diamonds as well as instrumentation, theory, testing and gemstone properties. Its nineteen lessons each serve as individual lectures and it pays considerable attention to covering all the background information and theory necessary for understanding every concept central to gemmological theory. Although suitable for readers of all levels of understanding, Practical Gemmology is specifically tailored to provide the information and diagrams necessary for the successful completion of diploma examinations and is an invaluable tool for gemmology students.
Download and read online Gemology in PDF and EPUB This edition has been revised and expanded to reflect recent and varied developments in the highly specialized field of gemology. Among these are: gemstone synthesis; imitation gems; the alteration of gems to improve, add, remove or otherwise change their color, phenomena or clarity; the importance and widespread uses of the microscope to reflect the aforementioned developments; and a number of new gem minerals or new forms of previously described minerals recently discovered or actively marketed for the first time. The chapter on Descriptive Gemology has been divided into two groups: important gemstones (those gem materials most widely used in jewelry and ornamental objects) and less important gemstones (those less commonly encountered).
Download and read online Small Press Record of Books in Print in PDF and EPUB
Download and read online Color Encyclopedia of Gemstones in PDF and EPUB Provides information on all known gemstone species and varieties, discussing physical properties, occurrence, chemistry, availability, rarity, and market potential, and includes complete data on synthetic gems