AGTA is the leading industry force in the ethical promotion of natural colored gemstones and cultured pearls.
A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry.
The jewelry industry’s most active online community & trading network.
Jewelers of America members uphold the highest ethics so you can shop with confidence for jewelry.
MJSA's Mission is to provide the information and support needed by jewelry makers, designers, and related suppliers to achieve professional excellence.
The American Gem Society is the country's preeminent jewelry trade organization dedicated to consumer protection.