A longstanding myth about opals—and the real truth behind them.

The stunning stone is estimated to be between 10 and 15 carats in size. Jewelry experts also estimate that the ring's overall price tag is somewhere between $1 to $5 million. They broke off their ...

Karina Brez has expanded her popular Cowgirl Luv Collection to introduce a series of crystal pendants. Named “Faith,” “Chance,” and “Destiny,” each crystal necklace symbolizes a different aspect of ...

A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry. Welcome to GIA. Students around the globe turn to GIA for the knowledge, ...