Gemstone press vermont (45 risultati)

Soft cover. Condizione: As New. 3rd Edition. Never sold copy still has crisp, tight pages and would be considered New except that a tiny bit of shelf wear does accumulate after 25 years. Two great color sections. 262 pp.

Paperback. Condizione: new. Paperback. Explains in non-technical terms how to use the Chelsea filter and synthetic emerald filter to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the Chelsea filter and synthetic emerald filter. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condizione: new. Paperback. Explains in non-technical terms how to use the refractometer to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the refractometer. Explains in non-technical terms how to use the refractometer to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the refractometer. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condizione: new. Paperback. Explains in non-technical terms how to use the ultraviolet lamp to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the ultraviolet lamp. Explains in non-technical terms how to use the ultraviolet lamp to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the ultraviolet lamp. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Trade Paperback. Condizione: Fine. All the information you need to buy, collect, sell -- or simply enjoy -- diamonds with confidence and knowledge. Softcover, xv, 184 pp., full-color and b/w illustrations. Excellent condition.

Trade Paperback. Condizione: Near Fine. First Edition First Printing. A stock image [photo] is an accurate representation of the listed book's cover design. Complete number line at copyright page. Covers clean, colors bright, no reading creases at spine, minor edge wear. Pages [301 including index plus 8 pages publisher ads] clean, unmarked, binding tight and square. Illustrated with two 8-page section of color photographs and B&W photos throughout. All books are in my smoke free & climate controlled shop and will have qualities and/or flaws described. Domestic & international shipping includes tracking information. Size: 8vo - over 7¾" - 9¾" tall. Various Photographers (illustratore).…

Hardcover. Condizione: Good. Condizione sovraccoperta: Good. Dj has very light edgewear. Light wear. Very light soiling. Tiny marker dot on bottom page edges.

Soft cover. Condizione: Very Good. Third Edition Updated.

Hardcover. Condizione: Fine. Condizione sovraccoperta: Fine. 1st Edition. Hardcover. A fine copy in a fine dust jacket. A Hands-on Guide to More Confident Buying & Selling. 322 pages, index, glossary, bibliography, gem testing labs, international list of association and equipment suppliers. 12 pages in color of gems and uses.…

Paperback. Condizione: new. Paperback. Newly updated and expanded,COLORED GEMSTONES gives you all theinformation you need to buy, collect, sellor simply enjoysapphires, emeralds, rubies andother colored gemstones with confidence and knowledge. With more varieties than ever before to choose from, including altogether new gems, revolutionary new cuts and new ways to buy gemssuch as Internet auctions and TV shoppingthere has never been a more exciting time to buy or collect colored 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 jewelry confusing, intimidating, overwhelming and costly. Buyers need a source of expert guidance.This practical, comprehensive, easy-to-understand guide provides 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 colorand its impact on price.Deciding between a natural gem and an enhanced gem and new glass-gemstone compositions.Colored 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.Important information about buying on the Internet. and much more!Written by an insider, this easy-to-read guide is the unofficial colored gemstone bible for anyone who wants to get the most for their money and enjoy what they have purchased. Gives you all the information you need to buy, collect, sellor simply enjoysapphires, emeralds, rubies and other colored gemstones with confidence and knowledge. Shipping may be from multiple locations in the US or from the UK, depending on stock availability. …

Paperback. Condizione: new. Paperback. Whether buying for personal pleasure or for investment, in today's market of Internet auctions, new diamond cuts, new colours, new treatments and new frauds buyers need a source of expert guidance. This comprehensive guide, from diamond expert and best-selling author Antoinette Matlins, is the unofficial bible for all diamond buyers who want to get the most for their money. Whether buying for personal pleasure or for investment, in today's marketof Internet auctions, new diamond cuts, new colors, new treatments and new fraudsbuyers need a source of expert guidance. This comprehensive guide, from diamond expert and best-selling author Antoinette Matlins, is the "unofficial bible" for all diamond buyers who want to get the most for their money. Easy to read, practical and easy to understand, Diamonds: The Antoinette Matlins Buying Guide explains in detail everything you need to know to buy and care for diamonds with confidence and knowledge. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condizione: new. Paperback. Newly updated and expanded, Diamonds gives you all the information you need to buy, collect, sell-or simply enjoy-diamonds with confidence and knowledge.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 colors, high-tech treatments and sophisticated frauds. There are new ways to buy-such as Internet auctions. 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?An in-depth look at factors affecting differences in quality and cost.Diamond grading reports-why all the information is important, and what it tells you.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!Written by an "insider," this easy-to-read guide is the "unofficial diamond bible" for anyone who wants to get the most for their money and enjoy what they have purchased. Newly updated and expanded, this full-color guide gives you all the information you need to buy, collect and sell diamonds with confidence and knowledge. Includes an in-depth look at factors affecting quality and cost, diamond grading reports, and ways to protect yourself from frauds and fakes. Practical, comprehensive and easy to understand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condizione: new. Paperback. The book couples in love have been waiting for. . .revised and updated! Engagement & Wedding Rings takes the fear and anxiety out of buying an engagement or wedding ring, restoring the romance and the magic of this once-in-a-lifetime experience.Inside Engagement & Wedding Rings, you'll find everything you need to know to select, buy and enjoy . to truly experience the wonder and excitement that should be part of findingor creating that "perfect" ring.Engagement & Wedding Rings;is filled with useful information to help you make the right choice, including:Romantic traditions behind engagement and wedding rings.How to select the right design and style for you.Tricks to get what you want on a budget.Steps to compare prices properly.How to select the perfect bridal pearls.The latest cuts, ring styles and designs.Secrets to differences in diamonds and colored gemstones that may appear to be the same quality.How to select your jeweler, appraiser and insurer.What to do to protect yourself against fraud and misrepresentationwhat to ask and what to get in writing. Takes the fear and anxiety out of buying an engagement or wedding ring, restoring the romance and the magic of this once-in-a-lifetime experience. You'll find everything you need to know to select, buy and enjoy that "perfect" ring . . . to truly experience the wonder and excitement that should be part of findingor creatingit. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condizione: new. Paperback. Know What You Want,Know What You're Buying,Learn the Secrets to Get the Most for Your Money/Finally! Everything you need to buy beautiful pearls with confidence. Easy to Read Easy to Understand Practical Complete Instant Answers . to All Your Questions For people who want a reliable source of information to guide them in the fascinating and complex world of pearls-natural, cultured and imitation. Filled with "insider" tips and advice to help you get what you want. For people who want a reliable source of information to guide them in the fascinating and complex world of pearls-natural, cultured and imitation. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Hard Cover. Condizione: Fine. Condizione sovraccoperta: Fine. "New 2nd Edition Revised & Expanded." Fine in dust jacket. Published at $34.95.

Paperback. Condizione: new. Paperback. Over 400,000 Copies in PrintKnow What You Want, Know What Youre Buying,Learn the Secrets to Get the Most for Your MoneyEasy to Read Easy to UnderstandPractical Complete Instant Answers . to All Your QuestionsCompletely Updated & Expanded 7th Edition! Purchasing gems and jewelry can be a magical experience, filled with excitement and anticipation. But lack of information, error, or misrepresentation can make the thrill of buying a gem or piece of jewelry confusing, intimidating, overwhelming, and costly. To help you avoid the pitfalls and keep the magic, two internationally respected experts on buying gems and jewelry put their inside knowledge to work for you in this easy-to-read, easy-to-use guide. It is filled with practical advice and is designed to make it easy for you to have all the information you need to buy gems and jewelry with confidence. Recommended by consumer and jewelry trade reviewers around the world, it is already in use in over 100 countries and has been translated into Spanish, Arabic, Greek, Hungarian, Russian and Japanese. Over 400,000 copies are now in print and this revised, updated, expanded edition covers even more: buying and selling on the internet, dazzling new diamond cuts, recently discovered gems and new treatments and trickery to look out for. There are fascinating mythical and magical tidbits, and practical tips that could only come from an insider.In simple, straightforward terms youll learn about the four Cs and how to juggle them to get what you want, at the price you want to pay; what to look for, and look out for; all about gold and platinum, jewelry design, and some of the countrys leading designers. Youll learn what questions to ask and what to get in writing, and even how to select the jeweler, appraiser, and insurer. The authors leave no stone unturned to give you everything you need to knowwhether you are a novice or a connoisseur. With Jewelry & Gems: The Buying Guide, youll find the experience can be a joy, and the gems and jewelry you select a source of lasting pleasure! To help you avoid the pitfalls and keep the magic, two internationally respected experts on buying gems and jewelry put their inside knowledge to work for you in this easy-to-read, easy-to-use guide. It is filled with practical advice and is designed to make it easy for you to have all the information you need to buy gems and jewelry with . Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Hardcover. Condizione: new. Hardcover. Gem Identification Made Easy is the first and only book that explains in non-technical terms how to identify diamonds and colored gems, and how to separate natural gems from imitations, treated stones, synthetics, 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. Includes over 150 photographs and illustrationsover 80 in full color!Using a simple, step-by-step system, the authors explain how to properly use essential but uncomplicated instruments to identify stones, 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 that, when used together, can identify almost 85% of all precious and popular stones.The key to avoiding costly mistakes and recognizing profitable opportunities is knowing 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 treatments, imitations, synthetics, look-alikes, and fakes in the gem market today.Learn how to tell the difference between them. Quickly spot:Synthetics, including synthetic emeralds and diamondsFilled diamondsDiffused "blue" sapphires and "red" rubiesHPHT-treated diamonds. and much more!Determine how to spot the newest "composite" imitations.Learn how to identify recently discovered gems such as "Mandarin" garnet, red "emerald," 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 your business or hobby. The first and only book that explains in non-technical terms how to identify diamonds and colored gems, and how to separate natural gems from imitations, treated stones, synthetics, and look-alikes. The book's approach is direct and practical, and its style easy to understand. Using a simple, step-by-step system, the authors explain how to . Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Soft cover. Condizione: Fine. Condizione sovraccoperta: Not Applicable. First American Edition. Card covers, pp.x, 198, colour plates, bw ills. How to select, buy, care for and enjoy pearls. Fine Size: 8vo - over 7¾" - 9¾" tall.

Hardcover. Condizione: new. Hardcover. The premier book of its kind, revised, updated and expanded. A comprehensive guide to the standards, procedures and ethics of appraising gems, jewelry and other valuables, Gems & Jewelry Appraising, 3rd Edition, contains expert practical guidance, combined with detailed descriptions, photos, case studies, pricing data, key documents and more. This guide offers all the information that practicing or aspiring appraisal professionals will need to establish an appraisal business, handle various kinds of appraisalsfor insurance, divorce, inheritance, liquidation, collateral and tax donationand provide an accurate, verifiable estimate of value. Contains expert practical guidance, combined with detailed descriptions, photos, case studies, pricing data, key documents and more. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condizione: new. Paperback. Explains in non-technical terms how to use the loupe and dark-field loupe to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the loupe and dark-field loupe. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condizione: new. Paperback. Explains in non-technical terms how to use the dichroscope to identify colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the dichroscope. Explains in non-technical terms how to use the dichroscope to identify colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the dichroscope. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability. …

Paperback. Condizione: new. Paperback. Explains in non-technical terms how to use the ultraviolet lamp to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the ultraviolet lamp. Explains in non-technical terms how to use the ultraviolet lamp to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the ultraviolet lamp. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.…

Hardcover. Condizione: Very Good. Condizione sovraccoperta: Good. Second Edition. Bound in clean blue cloth with gilt titles to spine, this 1999 hardcover Second Edition is VG in Good dustjacket.(Unclipped). X1/194pp with Preface, 6 Chapters, Numerous photos and Drawings, plus 15 Appendices (details diamond size, quality, grading: pearl facts: Auctions etc). Glossary, Bibliography and Index. Dustjacket chipped at corners and spine, but 99% complete. Thus VG in Good dustjacket.…

Paperback. Condizione: new. Paperback. Over 400,000 Copies in PrintKnow What You Want, Know What Youre Buying,Learn the Secrets to Get the Most for Your MoneyEasy to Read Easy to UnderstandPractical Complete Instant Answers . to All Your QuestionsCompletely Updated & Expanded 7th Edition! Purchasing gems and jewelry can be a magical experience, filled with excitement and anticipation. But lack of information, error, or misrepresentation can make the thrill of buying a gem or piece of jewelry confusing, intimidating, overwhelming, and costly. To help you avoid the pitfalls and keep the magic, two internationally respected experts on buying gems and jewelry put their inside knowledge to work for you in this easy-to-read, easy-to-use guide. It is filled with practical advice and is designed to make it easy for you to have all the information you need to buy gems and jewelry with confidence. Recommended by consumer and jewelry trade reviewers around the world, it is already in use in over 100 countries and has been translated into Spanish, Arabic, Greek, Hungarian, Russian and Japanese. Over 400,000 copies are now in print and this revised, updated, expanded edition covers even more: buying and selling on the internet, dazzling new diamond cuts, recently discovered gems and new treatments and trickery to look out for. There are fascinating mythical and magical tidbits, and practical tips that could only come from an insider.In simple, straightforward terms youll learn about the four Cs and how to juggle them to get what you want, at the price you want to pay; what to look for, and look out for; all about gold and platinum, jewelry design, and some of the countrys leading designers. Youll learn what questions to ask and what to get in writing, and even how to select the jeweler, appraiser, and insurer. The authors leave no stone unturned to give you everything you need to knowwhether you are a novice or a connoisseur. With Jewelry & Gems: The Buying Guide, youll find the experience can be a joy, and the gems and jewelry you select a source of lasting pleasure! To help you avoid the pitfalls and keep the magic, two internationally respected experts on buying gems and jewelry put their inside knowledge to work for you in this easy-to-read, easy-to-use guide. It is filled with practical advice and is designed to make it easy for you to have all the information you need to buy gems and jewelry with . Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.…

Paperback. Condizione: new. Paperback. Newly updated and expanded,COLORED GEMSTONES gives you all theinformation you need to buy, collect, sellor simply enjoysapphires, emeralds, rubies andother colored gemstones with confidence and knowledge. With more varieties than ever before to choose from, including altogether new gems, revolutionary new cuts and new ways to buy gemssuch as Internet auctions and TV shoppingthere has never been a more exciting time to buy or collect colored 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 jewelry confusing, intimidating, overwhelming and costly. Buyers need a source of expert guidance.This practical, comprehensive, easy-to-understand guide provides 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 colorand its impact on price.Deciding between a natural gem and an enhanced gem and new glass-gemstone compositions.Colored 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.Important information about buying on the Internet. and much more!Written by an insider, this easy-to-read guide is the unofficial colored gemstone bible for anyone who wants to get the most for their money and enjoy what they have purchased. Gives you all the information you need to buy, collect, sellor simply enjoysapphires, emeralds, rubies and other colored gemstones with confidence and knowledge. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability. …

Paperback. Condizione: new. Paperback. The book couples in love have been waiting for. . .revised and updated! Engagement & Wedding Rings takes the fear and anxiety out of buying an engagement or wedding ring, restoring the romance and the magic of this once-in-a-lifetime experience.Inside Engagement & Wedding Rings, you'll find everything you need to know to select, buy and enjoy . to truly experience the wonder and excitement that should be part of findingor creating that "perfect" ring.Engagement & Wedding Rings;is filled with useful information to help you make the right choice, including:Romantic traditions behind engagement and wedding rings.How to select the right design and style for you.Tricks to get what you want on a budget.Steps to compare prices properly.How to select the perfect bridal pearls.The latest cuts, ring styles and designs.Secrets to differences in diamonds and colored gemstones that may appear to be the same quality.How to select your jeweler, appraiser and insurer.What to do to protect yourself against fraud and misrepresentationwhat to ask and what to get in writing. Takes the fear and anxiety out of buying an engagement or wedding ring, restoring the romance and the magic of this once-in-a-lifetime experience. You'll find everything you need to know to select, buy and enjoy that "perfect" ring . . . to truly experience the wonder and excitement that should be part of findingor creatingit. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.…

Paperback. Condizione: new. Paperback. Updated 6th edition with new sites & museums! Gems & Minerals NORTHEAST Connecticut Delaware District of Columbia Indiana Illinois MaineMassachusetts Maryland Michigan New Hampshire New JerseyNew York Ohio Pennsylvania Rhode Island Vermont Wisconsin Whether you're digging for the first time or are an experienced rockhound or "prospector," with a simple rock hammer and a little luck, you too can strike it rich . or at the very least, have fun trying.This guide offers you easy-to-use information on the ins and outs of "fee dig" mining, complete with locations, costs, tips on technique, entertaining legends and important information on everything from safety kits to the location of the nearest restrooms.Included are resources for use in identifying your finds, exploring the lapidary arts, and further pursuing an exciting-and possibly profitable-hobby.Equipment and Clothing: What you need and where to find it (or how to make it yourself).Mining Techniques: Step-by-step instructions on panning for gold, sluicing for gems and other methods.Gem and Mineral Sites: Directions and maps, hours, fees and equipment needed. Also includes info on guide services, local camping facilities and more.Museums and Mine Tours: Where to visit commercial and historical mines, as well as museums with exhibits of gems and minerals (for help in learning what to look for).Special Events and Tourist Information: Listings of regional events involving gems and minerals, and sources of general travel and tourism information for every state.Other Features: Where to find your birthstone, your anniversary stone or your zodiac stone; Index by State; Index by Gem/Mineral; U.S. State Gems & Minerals Chart; and more!The Treasure Hunter's Gem & Mineral Guides to the U.S.A. in 4 regional volumes:Northeast ISBN: 978-0-9970145-0-1Northwest ISBN: 978-0-9904152-8-2Southeast ISBN: 978-0-9970145-1-8Southwest ISBN: 978-0-9904152-9-9 A guidebook for traveling rockhounds-or anyone with an interest in gems, rocks or minerals-exploring hidden treasures across the United States. Easy-to-use listings on "fee dig" mining, museum exhibits and more, with information on everything from safety kits to the location of the nearest restrooms, will help make every trip a success. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Hardcover. Condizione: new. Hardcover. The premier book of its kind, revised, updated and expanded. A comprehensive guide to the standards, procedures and ethics of appraising gems, jewelry and other valuables, Gems & Jewelry Appraising, 3rd Edition, contains expert practical guidance, combined with detailed descriptions, photos, case studies, pricing data, key documents and more. This guide offers all the information that practicing or aspiring appraisal professionals will need to establish an appraisal business, handle various kinds of appraisalsfor insurance, divorce, inheritance, liquidation, collateral and tax donationand provide an accurate, verifiable estimate of value. Contains expert practical guidance, combined with detailed descriptions, photos, case studies, pricing data, key documents and more. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.…

Paperback. Condizione: new. Paperback. The first book devoted exclusively to the spectroscope and its use in gemstone identification. Until 1933 the refractometer and the microscope were the two principal tools in gem testing. Then B.W. Anderson introduced the hand spectroscope which quickly became the third vital instrument for the UK gemmologist. The publication of Anderson's papers in the mid-1950s alerted gem laboratories worldwide to the importance of this instrument. Today its use is universal.Anderson and his lifelong colleague, Payne, both of the world's first full-time gemmological laboratory, were the pioneers in recognizing the vast potential of the spectroscope for this purpose, and The Spectroscope and Gemmology, as the extensively edited, updated and enlarged version of Anderson's original papers, provides a vital textbook wherever gemmology is used or taught. The distinguished gemmologist R. Keith Mitchell has undertaken the editing and has added chapters on the Pye spectrophotometer and on lasers. He has also reproduced new line drawings of spectra in three aspects to accommodate the prism instrument in both the British version and in that favoured by American gemmologists, and in another version as seen through the diffraction grating instrument.Written for gemmologists everywhere and incorporating the latest developments this book will prove indispensable to all engaged in gemstone identification. Written for gemmologists everywhere and incorporating the latest developments this book will prove indispensable to all engaged in gemstone identification. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condizione: new. Paperback. Explains in non-technical terms how to use the loupe and dark-field loupe to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the loupe and dark-field loupe. This item is printed on demand. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.…