judging quality
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Book | Ruby & Sapphire | 1997
Ruby & Sapphire
Richard W. Hughes | 1997
Ruby & Sapphire is widely acknowledged as one of the finest gemology books ever published. Not just an update of his previous volumes on ruby and sapphire, it represents something rarely seen in a technical book, a fusion of accurate science and spirited, accessible prose. Within its pages, one finds information on prices, quality analysis, sources, history, treatments and identification. Featuring over 300 color photos and 2500 references, this now out-of-print volume is today highly sought after by collectors and gemologists, who pay as much as $1000 or more for the privilege of owning a copy.
Out-of-print. Click here to search for a copy
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Book | Ruby & Sapphire | A Collector's Guide | 2014 | Order Page
Introducing…
Ruby & Sapphire: A Collector’s Guide
by Richard W. Hughes
with photographs by Wimon Manorotkul and E. Billie HughesThis impressive coffee-table style volume takes readers into the secret world of ruby and sapphire, through the pen and lens of international expert, Richard Hughes. The author guides readers with the steady eye of a connoisseur, explaining what collectors should look for in ruby and sapphire. Many pictured pieces feature actual auction prices, aiding collectors in their buying decisions. Illustrated with more than 400 magnificent color photographs, for anyone with an interest in precious stones, this is a visual and intellectual feast of the most delicious order.
Published 2014; Sold Out
Hardcover with Dust Jacket
384 pages; 240 x 280 mm (9.45 x 11 inches); 2.4 kg shipping weight
Full Color Throughout
Content
1. Résumé
History
2. Source
Geology
Valley of Serpents
Afghanistan
Australia
India
Kenya
Laos
Madagascar
Malawi
Mozambique
Myanmar
Nepal
Pakistan
Rwanda
Sri Lanka
Tajikistan
Tanzania
Thailand & Cambodia
Thailand & Cambodia
USA–Montana
Vietnam
3. Connoisseur
Cutting
From Pigeon's Blood to Peacock's Neck
Ruby & Sapphire Prices
Does Size Matter?
The Tao of Jewelry
4. Forensic
Inner Space
Enhancements
Connoisseurship of Crystals
5. Heart
Gem Cutting in Thailand
The Thai Jeweler's Art
6. Library
Library
Library
7. Portfolio
Portfolio
Index
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Book | Ruby & Sapphire | A Gemologist's Guide | Order Page
Introducing…
Ruby & Sapphire: A Gemologist's Guide
by Richard W. Hughes
with Wimon Manorotkul and E. Billie HughesThis massive volume is the most comprehensive book ever written on a single precious stone. Designed as a companion volume to Ruby & Sapphire: A Collector's Guide, it is aimed specifically at working gemologists, appraisers and students. Based on Richard W. Hughes' 1997 classic, Ruby & Sapphire, this edition is fully updated. The product of nearly 40 years of firsthand experience and research, it covers every aspect of the subject from A–Z. History, sources, prices, quality analysis, synthetics and treatments, everything is here. Ruby & Sapphire—A Gemologist’s Guide represents the definitive reference on the subject. With over 1000 photos, maps and illustrations and 3500 references, it is nothing less than a tour-de-force of gemological scholarship.
Published 2017; Sold Out
•International Shipping & Handling from Thailand
Ships via International Parcel Air (2-3 weeks)Hardcover with Dust Jacket
816 pages; 240 x 280 mm (9.45 x 11 inches); 4.6 kg shipping weight
Full Color Throughout
Gallery
Title Page
Contents
Contents
Introduction
1. History
2. Chemistry & Crystallography
3. Properties & Phenomena
4. Color & Luminescence
5. Inclusions
6. Treatments
7. Synthetic Corundum
8. Assembled Stones
9. Methods of Fashioning
10. Judging Quality
11. Geology
12. World Sources
Afghanistan
Australia
China
Colombia
France & Greenland
India
Kenya
Laos
Madagascar
Malawi
Mozambique
Myanmar
Nepal & Nigeria
Pakistan
Rwanda
Sri Lanka
Tajikistan
Tanzania
Thailand/Cambodia
USA
Vietnam
Appendix A: Tagore's Mani-Mala
Appendix B: Prices & ID Flow Charts
Index
Click on the icon to download a corrected Table of Contents and Errata sheet for the current volume (PDF).
Comments from reviewers…
Voilà un livre de poids, 735 pages et plus de 4 kg qui enrichira vos connaissances historiques comme scientifiques et gemmologiques. L' auteur, bien connu des gemmologues, nous offre un nouveau voyage dans l' univers des corindons. C' est un livre à regarder, approcher, toucher, feuilleter, découvrir enen l' ouvrant avec à la fois impatience et retenue, pour finalement s' y abandonner. C' est une leçon de vie, un livre-compagnon à déguster sans modération.
—Association Française de Gemmologie
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Brilliance, Windows, and Extinction in Gemstones
A discussion of brilliance, windows and extinction as they relate to the face-up appearance of colored gemstones. Diagrams demonstrate that extinction is largely a function of cut.
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Burmese Jade | The Inscrutable Gem
Myanmar's jadeite mines occupy a privileged place, representing the planet's principal source of fine jadeite jade. This article covers the deposits themselves, along with the cutting, grading and trading of jadeite.
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Buying at the Source | Dick's Law and Other Sundry Maxims of the East
An essay on buying gems at the source in Asia, with a discussion of how con men play on the greed of those who believe gems will be cheaper at the mines.
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Colored Stone Grading | A Heretic's Guide
Developing a comprehensive colored stone grading system has been the dream of gemologists since the late 1970's, but despite a number of valient attempts, we are no closer to the goal today than we were four decades ago. This article examines the various problems of colored stone grading, explaining why the challenges are at least an order of magnitude greater than the grading of diamonds.
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Describing Color in Gems | A Fool's Guide
Color types such as "pigeon's blood," "Paraíba" and "cobalt blue" have become wildly popular in the gem trade. But there is a vast difference between coining such terms and applying them in a way that is both consistent and logical. Richard Hughes casts a critical eye on the subject.
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Gem Treatment Disclosure | Trust
The ethics of gem enhancement disclosure.
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Jade Buying Guide | Jade Auction Records
This article discusses the factors that influence quality and what to look for when buying both jadeite and nephrite. A list of jade auction records is also included.
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Padparadscha Sapphire & the Ownership of Words
A discussion of the definition of padparadscha sapphire, from early to modern times, along with the difficulty in standardizing such definitions.
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Ruby & Sapphire Color Types | From Peacock to Pigeon's Blood
A brief description of the color types for ruby and sapphire used at Lotus Gemology.
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Ruby Connoisseurship | Seeing Red
A loving look at ruby – the gem of passion – from the standpoint of the connoisseur.
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Ruby, Pink Sapphire & Padparadscha | Walking the Line
An examination of the problem of separating pink sapphire and padparadscha from ruby.
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Ruby, Sapphire & Spinel Auction Records | Under the Hammer
World auction records for ruby, sapphire and spinel.
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Sapphire Connoisseurship | Judging Sapphire | Passion Fruit
Sapphire is one of the classic gems. In this article, Lotus Gemology's resident connoisseur casts a discerning eye at the factors that contribute to quality in this legendary precious stone.
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Spinel | Resurrection of a Classic
Since the turn of the millennium, the price of fine spinel has risen at an incredible pace. No longer simply the poor man's ruby, spinel is finally getting the attention it deserves as one of the world's premier gems.