american gem trade association

AGTA is the leading industry force in the ethical promotion of natural colored gemstones and cultured pearls.

GIA logo

A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry.

Polygon Logo

The jewelry industry’s most active online community & trading network.

jewelers of america

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.

American Gem Society Laboratories

The American Gem Society is the country's preeminent jewelry trade organization dedicated to consumer protection.