◂ BACK TO GEM ENCYCLOPEDIA

Opal

Fireworks. Jellyfish. Galaxies. Lightning. Opal's shifting play of kaleidoscopic colors is unlike any other gem.

Opal
See Gem As

Photos & Videos

No items found.

This Month's

Featured Gems

reading

PERIDOT

Found in lava, meteorites, and deep in the earth’s mantle, yellow-green peridot is the extreme gem.
reading

FANCY COLOR DIAMOND

Dazzling brilliance. Captivating color. These are the planet’s most valued gems.
reading

DIAMOND

Diamonds are among nature’s most precious and beautiful creations.
reading

EMERALD

Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine.
reading

CITRINE

Citrine is the transparent, pale yellow to brownish orange variety of quartz.

View The Gem Encyclopedia

You Might Also Like

YMAL AJP
AJP®: New 5-Day Program Offered Worldwide
Learn More
Learn About NextGem
GIA NextGem™ Diamond Training for Retail
Learn More
Explore GIA Laboratory Promotional Offers
Explore GIA Laboratory Promotional Offers
Learn More
Shop the GIA Store
Shop the GIA Store
SHOP NOW