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The Historic Teachings of Gemcutting

Issue 56 Book Reviews Cynthia Unninayar -
As its title implies, this book presents a detailed, scholarly, and engaging journey through the long, intricate history of gemstone cutting—a craft that sits...
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Riding the Waves Through Rough Times

Issue 56 ICA Report Damien Cody -
As 2026 begins, we find ourselves continuing to operate in uncertain times. Across the globe, we face economic downturns that shake confidence. Political unrest that...
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The HKTDC Twin Jewelry Shows to Shine in March 2026

Issue 56 Industry News InColor -
The twin jewelry shows organized by the Hong Kong Trade Development Council will open in March 2026. The 42nd HKTDC-organized Hong Kong International Jewellery...
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The International Gemmological Conference (IGC)

Issue 56 Events Ioannis Alexandris -
The International Gemmological Conference (IGC) convened its 38th edition, from October 20–24, 2025 at the Athens Chamber of Commerce and Industry, located in the...
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Women in the Colored Gemstone Industry

Issue 56 Women & Gems Cynthia Unninayar -
In an industry long dominated by men, women are increasingly making their mark in the colored gemstone sector. They are directly involved in the...
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Precious corals and genomic transparency

Issue 56 Gemstones Dr Laurent E. Cartier, Dr. Bertalan Lendvay, Dr. Akitsugu Sato and Dr. Michael S. Krzemnicki -
Precious corals have been coveted across different continents and are some of the oldest gems used by humans. Historically, they were found in the...
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PANTONE’S Color of the Year Is WHITE

Issue 56 Industry News InColor -
Describing it as A Whisper of Tranquility and Peace in a Noisy World, Pantone introduced its Color of the Year 2026, PANTONE 11-4201 Cloud...
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The Laboratory Manual Harmonisation Committee (LMHC)

Issue 56 Gem Nomenclature Dr. Michael S. Krzemnicki, Dr Laurent E. Cartier, Claudio C. Milisenda, Kentaro Emori, Shane McClure, Pierre Hardy, Thanong Leelawatanasuk and Antonello Donini -
Many in the trade may have already heard about the Laboratory Manual Harmonisation Committee (LMHC), founded 25 years ago as an essential group of...
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Confronting new sensibilities in the year ahead

Issue 56 ICA Report Douglas Hucker -
No doubt, many in our industry are eyeing Tucson as a harbinger of how the coming year might play out. It is clear that...
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The VII National Gemological Conference

Issue 56 Events Francesca Gandolfo -
The conference began with a first session about new developments in gemology, dedicated to the wonderful world of tourmalines. Claudio Milisenda from the DSEF...
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Issue 56 - Winter 2026

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Book Reviews

Book Reviews

The Historic Teachings of Gemcutting

Issue 56 InColor Cynthia Unninayar -
As its title implies, this book presents a detailed, scholarly, and engaging journey through the long, intricate history of gemstone cutting—a craft that sits at the intersection of artistry, geometry, gemology, and human ingenuity. From its opening chapters, the authors demonstrate a deep command of the subject, weaving together archaeological...
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Book Reviews

Talking Fei Cui Jade

Issue 47 InColor InColor -
Fei cui jade is highly appreciated in Eastern cultures for its beauty, power and good fortune, with rising interest in the Western world. The record prices received at auction as well as the growing demand for this remarkable gemstone bring us visit the book Fei Cui Jade – A...
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Book Reviews

The Smithsonian National Gem Collection – Unearthed

InColor Richard Drucker -
Estimated reading time: 6 minutes Knowing Jeffrey Post personally and having been to the back room of the Smithsonian Gem Hall, when I heard of this book being available, I knew it would be a must-have for my library. I was not disappointed and the praises that appear here...
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InColor magazine is the ICA's quarterly publication, all about colored gemstones. A must read for anyone in the gemstone and jewelry industry, as well as the gem enthusiast. InColor reports on information relating to the gemstone trade, mining, gemology, education, trends, fashion as well as ICA member related issues.
Contact us: ica@gemstone.org

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