News Gallery



October’s Opalescence by Debbie Yonick Bursting with life and vitality, the dazzling, hypnotic play-of-color that is opal inspires its moniker,...

Clear Quartz

Crystal Clear The illuminating powers of rock crystal quartz. By Carol Besler In ancient times, clear quartz, which is called rock crystal, was used...


Calming Chalcedony The loveliest of blue quartz gems is a talisman for public speakers and makes a fashionable jewel. by Carol Besler Chalcedony is...


Emerald: the springtime gem The vibrant green of emerald symbolizes renewal and fresh beginnings. It’s the perfect birthstone for May. By Carol...

About Us

What is the International Colored Gemstone...

The International Colored Gemstone Association (ICA), a non-profit organization, is the only...

Board Members

The ICA's Board of Directors comprise an international array of distinguished gem professionals...


The gemstone professionals that participate in ICA's committees share their business acumen and...


Having members in more than 47 countries, the ICA strives to keep its international community...

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. Easy to read, InColor boasts insider information and top industry news from around the world.

The magazine is aimed at jewelry manufacturers and retailers.

InColor reports on information relating to the gemstone trade, mining, gemology, education, trends, fashion as well as ICA member related issues. InColor us published four times per year, usually with one spe3cial issue per year, including a World Gemstone Mining Report published with some frequency. Other special reports and publications include a gemological laboratory services world directory and a special ICA Congress issue.

The magazine is available in print and on-line as well as through a special App.

InColor magazine has become a professional magazine and is used as a trade reference. It is now self-sustaining with the printing and distribution of 4,000 - 5,000 copies.

It has developed an editorial line with a standard format and categories that include all segments of the gemstone industry: gem mining, trading, industry events and shows, gemology, jewelry design, fashion and color trends, education and gem news as well as ICA news, initiatives and member activities.

Internationally renowned writers and contributors are invited to publish articles in every issue of the magazine.


About Us

The ICA is a worldwide body specifically created to benefit the global colored gemstone industry by advancing and promoting the knowledge and appreciation of colored gemstones.
New York Office: 31 West 47th St., Suite 1103, New York, NY 10036
+1 (212) 620-0900
ica (at)
Hong Kong Office: Unit 311B, 3rd Floor, Heng Ngai Jewelry Centre No. 4 Hok Yuen Street East, Hung Hom, Kowloon, Hong Kong
+852 2365-9318
ica (at)

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