Secrets of the Gem Trade

Secrets of the Gem Trade

Author: Richard W. Wise

Publisher: Brunswick House

Published: 2016

Total Pages: 0

ISBN-13: 9780972822329

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Finally the real truth about how master jewellers, gemmologists and major auction houses value diamonds and colored gemstones.


Precious Objects

Precious Objects

Author: Alicia Oltuski

Publisher: Simon and Schuster

Published: 2011-07-19

Total Pages: 370

ISBN-13: 143917170X

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In the middle of New York City lies a neighborhood where all secrets are valuable, all assets are liquid, and all deals are sealed with a blessing rather than a contract. Welcome to the diamond district. Ninety percent of all diamonds that enter America pass through these few blocks, but the inner workings of this mysterious world are known only to the people who inhabit it. In Precious Objects, twenty-six-year-old journalist Alicia Oltuski, the daughter and granddaughter of diamond dealers, seamlessly blends family narrative with literary reportage to reveal the fascinating secrets of the diamond industry and its madcap characters: an Elvis-impersonating dealer, a duo of diamond-detective brothers, and her own eccentric father. With insight and drama, Oltuski limns her family’s diamond-paved move from communist Siberia to a displaced persons camp in post–World War II Germany to New York’s diamond district, exploring the connections among Jews and the industry, the gem and its lore, and the exotic citizens of this secluded world. Entertaining and illuminating, Precious Objects offers an insider’s look at the history, business, and society behind one of the world’s most coveted natural resources, providing an unforgettable backstage pass to an extraordinary and timeless show.


Gems of the World

Gems of the World

Author: Cally Oldershaw

Publisher: Firefly Books

Published: 2017-10-07

Total Pages: 256

ISBN-13: 9780228100072

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-Lavishly illustrated, Gems of the World is intended for anyone who has ever been fascinated by crystals, jewelry, and gems, from general readers to seasoned professionals. It is a fine addition to general collections.- --Booklist, on the previous edition Gems of the World is a practical and comprehensive guide to the identification and properties of precious and semiprecious gems, novelty stones, agates and crystals. This edition has been revised and thoroughly updated. Changes and new features include updated maps of recently established diamond bourses and geographical country changes, plus new gem varieties and localities where they are found, new techniques for producing synthetic gemstones and simulants, and much more. There is comprehensive information on gems: gem formation mining the diamond industry conflict diamonds ethical sourcing crystal structure (diagrams and cuts) optical and physical properties fashioning and cutting (properties and uses) gemstone cuts for diamonds buying a diamond buying colored gemstones imitation and synthetic gemstones gemstone enhancement history of gems famous diamonds caring for gemstones and jewelry a color key of 139 gemstones. The text describes the world's diamond cutting and trading centers, the -diamond pipeline- that flows from mine to retail, and information on the gemstone industry, ethical mining, conflict diamonds and the emergence of new diamond centers. The description directory of gemstones is organized by their chemical composition. The 139 profiles describe each gem's geology, chemistry, properties (such as color, refractive index, and luster), cultural use in history and its value in jewelry. Photographs show the gem as a raw crystal, in common cuts, polished for use, and in some cases, also in a piece of jewelry. Gems of the World is an ideal reference for gemologists, collectors and general readers.


Gem

Gem

Author: DK

Publisher: Penguin

Published: 2023-03-07

Total Pages: 442

ISBN-13: 0744084873

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Prepare to be dazzled by this shining and sumptuous visual guide to the world's greatest treasures. Feast your eyes on glittering gemstones, kaleidoscopic minerals, and famous trinkets in this comprehensive exploration of Earth's finest jewels. Following a foreword from Aja Raden, hundreds of pages take a lavish look at precious stones, precious metals, and organic gems in all their natural wonder. From agate to zoisite, everything under the Sun is encapsulated in spectacular photography and accessible text. Trace the history of gemmology and get the inside story on our planet's most famous and fabulous gems, including the mysterious Hope Diamond, the stunning Koh-i-Noor of the Crown Jewels, and exquisite Fabergé eggs. Find out their physical properties, check the price tags, and discover the most remarkable record-breakers. This exceptionally extravagant book is a picture-packed, fact-filled celebration guaranteed to bring sparkle to your life and your library.


Gemstones

Gemstones

Author: Keith Wallis (F.G.A.)

Publisher: Acc Art Books

Published: 2011

Total Pages: 0

ISBN-13: 9781851496303

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As well as diamonds, emeralds, rubies and sapphires, over 100 gems are featured, with full descriptions, technical details, and tips on how to check for fakes; illustrated throughout with fabulous color photographs to make identification easier.


Colored Gemstones

Colored Gemstones

Author: Antoinette Leonard Matlins

Publisher: Gemstone Press

Published: 2005

Total Pages: 211

ISBN-13: 0943763452

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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!


The Gem Merchant - How to Be One - How to Deal with One

The Gem Merchant - How to Be One - How to Deal with One

Author: David Stanley Epstein

Publisher:

Published: 2012-05-06

Total Pages: 192

ISBN-13: 9781468122275

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"See what Gems & Gemology - The Magazine of the Gemological Institute of America - has to say about The Gem Merchant" Every retail jeweler, manufacturer, and gemologist should read this book* What is the "REAL" price?* How could I get a break on the price of that stone?* Is the gem with more green or more yellow in it worth more?* Is that gem merchant treating me fairly?* How can a jeweler sell more high-profit colored stone jewelry and tie up less capital?These are some of the questions answered and some of the secrets revealed by this famous gem merchant/cutter and author. If you have asked questions like these and found evasiveness or silence as your reply, you should read this book.This book is not just a "must for gem merchants, gemologists and appraisers; it is a book particularly for the jeweler who want to make more money with colored stones, and for gem lovers in general. What people in the trade say about this book: "This is unquestionably the best book on "How to Buy and Sell Gems". Although David has been my long time buying agent for Brazilian stones this book helped me make even more money from the gem business."--Richard Wise, G.G., jeweler and author of "Secrets of the Gem Trade" "I wouldn't have known how to locate or even define my market without this book and Mr. Epstein's help. I entered the business with no friends or relatives in the trade. There was no one to help." -Gerard Walsh, F.G.A.A., Sydney, Australia "Whether you are a jeweler, experienced gem merchant or a beginner, this book shows you how to avoid serious pitfalls and how to be successful buying and sell¬ing gems."-Bryan Pavlik, Ambassador to Austriafrom the International Colored Stone Association "I had taken a gemological course in Antwerp but knew nothing about how gems were bought and sold. There is no doubt that David Epstein and his book "The Gem Merchant" made the difference."--Marco Minafra, Catania, Italy "When I started as a gem merchant I had success, but not enough to do it full time. After David let me in on the secrets revealed in this book my business got to the point where it is a successful full time business." --Joe DeCristoforo, New York, USA "We are an AGS, IJO store. Since my father started the store in 1929, we have always placed much emphasis on colored gems. David Epstein and his book "The Gem Merchant" have helped our colored stone sales and profit.--Louis Castiglione, Ph.D., G.G.A., Castaglione Jewelers,Gloversville, New York, USAWhat trade magazines say about this book: "For those interested in learning more about what it takes to deal in gems."--National Jeweler "This book should be carefully read and digested, by those involved in buying and selling gemstones, for advice offered covers the broad spectra of buying and mar¬keting strategies for gemstones and gem rough, survival tips on entering the gem¬stone manufacturing industry, and a range of general information that could be successfully applied to trading in gemstones. Importantly, the advice offered is sensible, practical, honest, and straightforward."-Australian Gemmologist "David Epstein is eminently qualified to write this book." -Alice Keller, Editor-in-Chief, Gems and Gemology "This is a delightful account of the difficulties to be borne in mind when setting up (or out) as a peripatetic gem dealer. There is a good deal of common sense."-Gemmological Association & Gem Testing Laboratory of Great Britain


Artificial Gemstones

Artificial Gemstones

Author: Michael O'Donoghue

Publisher: Robert Hale

Published: 2007-11-30

Total Pages: 294

ISBN-13: 9780719803314

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This title is now in paperback for the first time.Artificial gemstones have been well established in the trade for some time, but now, following further refinements in their manufacture, gemmologists worldwide are facing increasing problems with identification.Today, gem-quality synthetic diamonds, once deemed impossible to produce, are becoming widely available, and, moreover, it is possible to create almost any major gemstone in whatever colour is desired. Then, too, the growth of diamonds by chemical vapour deposition is destined to present further problems. The synthetic products of the past, particularly of the 1960s, are still available, and are puzzling the newer generations of gemmologists who have not encountered them previously.In "Artificial Gemstones", Michael O'Donoghue provides the definitive guide to the various manmade substitutes thus enabling anyone handling gems to identify them accurately. Starting with the theory of synthetic gem manufacture and an explanation of the production methods used for growing and/or improving crystals - with their ornamental application - the book moves on to list and identify the materials themselves. Some of these have natural counterparts; others are new minerals and do not occur in nature. The author lists the identifying internal and external features and tests, and the book contains colour illustrations to display the inclusions found in transparent materials. The book is completed by an extensive bibliography and a useful appendix of trade names.Gemmologists, gem dealers, lapidaries, curators, amateurs and students of gemmology and mineralogy will all find this an indispensable addition to their bookshelves.


Treated Diamonds

Treated Diamonds

Author: James E. Shigley

Publisher: GIA Publications

Published: 2008

Total Pages: 301

ISBN-13: 9780873110549

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Most of the material presented here was originally published in Gems & Gemology as articles and lab notes (short reports from the GIA Laboratory, formerly called the Gem Trade Laboratory) or as Gem News/Gem News International items between the years 1938 and 2007. Also included are summaries of presentations at GIA's 2006 International Gemological Symposium and Gemological Research Conference, which originally appeared in the Fall 2006 Proceedings volume produced by Gems & Gemology staff. The present work is organized in two main parts on color treatments and clarity treatments, with color photos and microimages on almost every page. Chapters in the section on color treatments cover coated diamonds, irradiated diamonds, and annealed diamonds. Chapters in the section on clarity treatments cover laser-drilled and glass-filled diamonds. Material is presented in chronological order to help readers follow the evolving areas of interest and understanding of these treatments. Some of the older material includes editorial comments to explain now-unfamiliar concepts or discuss significant development since the original publication. The book includes a poster-sized color chart enclosed in a side pocket, with color photos demonstrating diagnostic features of filled diamonds and testing techniques. Shigley is a distinguished research fellow at the GIA Lab in Carlsbad, California.