The International Colored Gemstone Association, the ICA, is a not-for-profit association representing an international membership of dedicated miners, cutters, and suppliers of genuine natural colored gemstones. There are over 700 dedicated members from around the globe.

Being an ICA member means being part of this elite group, whose membership promotes the understanding, and appreciation of colored gemstones, including, and requiring, ethical and socially responsible practices, with proper and full disclosure of treatments and enhancements.

Their support of the ICA strengthens the gem industry, which in turn, makes the industry a more trustworthy place for consumers to purchase beautiful gems.

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)

ICA Newsletter