For more information on gemstones and jewelry in general, these are some on-line resources that are available and valuable:

American Gem Trade Association (AGTA)

http://www.agta.org/

Gemological Institute of America (GIA)

https://www.gia.edu/

The Gemmological Association of Great Britain (Gem-A)

https://gem-a.com/

The World Jewellery Confederation (CIBJO)

http://www.cibjo.org/

Jewelers Vigilance Committee (JVC)

https://www.jvclegal.org/

American Gem Society (AGS)

https://www.americangemsociety.org/en/

U.S. Federal Trade Commission

https://www.ftc.gov/

OECD Due Diligence Guidance for Responsible Supply Chains of Minerals
from Conflict Affected & High Risk Areas

http://www.oecd.org/corporate/mne/mining.htm

UNICRI - United Nations Inter-regional Crime & Justice Research Institute

http://www.unicri.it/

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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) gemstone.org
Hong Kong Office: Unit 311B, 3rd Floor, Heng Ngai Jewelry Centre No. 4 Hol Yuen Street East, Hung Hom, Kowloon, Hong Kong
+852 2365-9318
ica (at) gemstone.org

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