Research & News
Green-Blue Maxixe-Type Beryl
A transparent greenish blue pear-shaped gemstone, reportedly from Madagascar, is discovered to be a Maxixe-type beryl.
2018 GIA Symposium
Scientists and business leaders will gather at a summit of the gem and jewelry industry.
Blue Diamonds Have a Link to Ancient Oceans
This is an extended abstract of the article ‘Blue boron-bearing diamonds from Earth’s lower mantle,’ published in the 2018 August issue of Nature. GIA Researcher Evan Smith is the lead author of the article.
Turquoise from Western Arkansas
A report on turquoise from the only known U.S. deposit outside of the Southwest.
Exhibition Review: Green Diamonds: Natural Radiance
Review of Green Diamonds: Natural Radiance at the Natural History Museum of Los Angeles.
Diamonds Help Solve the Enigma of Earth's Deep Water
The first installment of G&G’s newest section explores how natural diamonds shed light on the mystery of water found in Earth’s deep mantle.