Latest Issue

Rediscovering Spinel: A Legacy Reborn

Issue 56 Gemstones Rahul Jain -
There is a quiet poetry to spinel—a gemstone that has adorned the crowns of kings, yet spent centuries living under another’s name. In the...
Read more

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...
Read more

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...
Read more

Trade Show Report for the ICA Pavilion at the September Jewellery & Gem WORLD Hong Kong Show

Issue 56 Events Maggie Liu -
The important colored gemstone, pearl, and diamond show, part of the Informa-organized Jewellery & Gem WORLD Hong Kong 2025, concluded its September edition, held...
Read more

Amethyst’s Regal Allure

Issue 56 Gemstones Lauriane Lognay -
Re-visiting a gemstone that has been in the jewelry world for hundreds of years—and written about many thousands of times—can be a daunting task....
Read more

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...
Read more

The Gübelin Gem Museum

Issue 56 Museum InColor -
Situated in the Swiss city of Lucerne, the Gübelin Gem Museum opens a window into the captivating world of colored gemstones, tracing their origins,...
Read more

Fei Cui Global Supply Chain Research – Update

Issue 56 Gemstones InColor -
During the Christmas to New Year 2024/2025 period and throughout 2025, the Guild Field Expedition Team traveled to Fei Cui producing areas and market...
Read more

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...
Read more

‘Pinterest Predicts’ 21 Trends for 2026

Issue 56 Industry News InColor -
In its 2026 report on the year's growing trends, Pinterest Predicts highlights 21 product categories, from gummy bears to fashion to perfume to nail...
Read more
Load more

Issue 56 - Winter 2026

ICA Plus 2026

Most popular

Industry News

Color Trends

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...
Read more
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...
Read more
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...
Read more
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

EVEN MORE NEWS

POPULAR CATEGORY

© InColor - A Publication of the ICA