International Colored Gemstone Association

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.

InColor Magazine

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. 

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ICA Congress

The biennial ICA Congresses are organized in member countries spanning the globe. Industry experts share their knowledge with an audience of trade peers, industry professionals and ICA members.

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Member Directory

Membership in the International Colored Gemstone Association affords industry professionals worldwide the opportunity to work together to expand the market for natural colored gemstones.

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Our Mission

The ICA, a non-profit organization, was founded in 1984 and is now comprised of nearly 700 gem industry leaders from mine to market, including miners, gem cutters, suppliers, retailers, trade associations, gemological laboratories, academia, museums, and more, from 47 countries who are devoted to colored gemstones.

our mission would not be possible without our leadership

Accredited Ethical Program
Gems Keep Giving Fund
ICA | GemLab


ICA, our members, employees, and Board of Directors, stand in solidarity in the fight against systemic racism and injustice. We are an Association of all creeds, colors, nationalities, and religions, comprised of nearly 700 gem industry leaders from all over the world. Inclusiveness is intrinsic to the very nature of ICA and we are accepting of all human beings and support all the diversity that makes this world and the colored gemstone industry rich and unique.


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