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The best of Gems & Gemology on the subject of treated diamonds: Now available in one comprehensive volume.
Once, diamond dealers could get by with rinsing their stones in alcohol to remove potential coatings, but no more. Modern diamond treatments have fundamentally changed the landscape for those who handle diamonds. For more than 70 years, Gems & Gemology has been at the forefront in characterizing diamond treatments – from early reports on irradiated diamonds in the 1930s, to the first use of laser drilling to remove dark inclusions in the 1970s, followed by glass filling in the 1980s and processing with high pressure and high temperature to alter color in the late 1990s. Previously, this material was spread across dozens of issues. Now, the important articles, lab notes, gem news items, and conference abstracts on the subject have been compiled into one comprehensive volume, Gems & Gemology In Review: Treated Diamonds.
Order your copy here for just $59.95.
Also available in this series: Colored Diamonds and Synthetic Diamonds.
Order all three for only $150!
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Features
- Learn about color treatments such as coating, irradiation, annealing, and HPHT, and clarity treatments such as laser-drilling and glass filling, plus much more
- Editorial commentary by Dr. James Shigley, GIA distinguished research fellow
- Practical approaches to detection and identification
- Insights into the past, present, and future of diamond treatments – in the marketplace and the laboratory
- 301 pages of award-winning articles and exceptional color photography
- Soft-cover volume set in an attractive slipcase
- Includes the full-sized “Identification of Filled Diamonds” chart
- Your single most important resource for treated diamonds
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| Some of the material in this volume of Gems & Gemology In Review is from issues that are long out of print. |
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Preface
By Thomas W. Overton & Dr. James Shigley
For as long as humans have valued certain materials as gems, those who sell them have sought ways to make them appear brighter, shinier, and more attractive – to, in other words, make them more salable and profitable. From the earliest, most basic dyes and coatings to the most sophisticated high-pressure, high-temperature (HPHT) annealing processes, the history of diamond treatments parallels that of human advancement, as one technological development after another was called upon to serve the “King of Gems.” And, much as the pace of human technological advances accelerated in the past hundred-plus years, gemologists of the 20th century witnessed the introduction of gem treatments that the earliest diamond merchants could scarcely have imagined – and that literally reshaped the world of contemporary diamantaires.
Read more...
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Table of Contents
1. Color Treatments
- Coated Diamonds
- Irradiated Diamonds
- Annealed Diamonds
–HPHT-annealed to
Reduce Color
–HPHT-annealed to
Produce Fancy
Color
–Low-Pressure, High
Temperature
Annealing to
Produce Black
Diamonds
2. Clarity Treatments
- Laser-Drilled Diamonds
- Glass-Filled Diamonds
Complete Table of Contents
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Don’t miss the other volumes in this landmark series! Quantities are limited.
Gems & Gemology in Review: Colored Diamonds
Gems & Gemology in Review: Synthetic Diamonds
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