Mineralogy and Geochemistry of Turquoise from Tianhu East, Xinjiang, China
Examines turquoise from northern China and identifies a geographic origin indicator to distinguish it from other Chinese sources.
Two Pen Pearls from Bahrain
GIA’s Mumbai laboratory reports on two non-nacreous pen pearls from Bahrain.
Seventh Annual Gianmaria Buccellati Foundation Award Winner
A graduate of GIA’s Jewelry Design program in Taiwan is the recipient of the 2023 Gianmaria Buccellati Foundation Award.
CVD with “Ancient Text” Clouds
A CVD-grown diamond exhibits an interesting clarity characteristic.
G&G Features in a Flash: Texas Topaz
Learn about Texas topaz history and geographic origin research.
New and Notable Finds from the GIA Lab: Winter 2023
Discover a bicolor chameleon diamond, a diamond with carbon dioxide, and a pink square inside a diamond.
Gems of Northern Madagascar Video with GIA Field Gemology
Learn all about the gems of Northern Madagascar in this exciting video with Wim Vertriest, GIA Manager of Field Gemology.
G&G in a Flash: The Journey of Superdeep Diamonds
How are Superdeep Diamonds Transported by Kimberlites?
AGS and GIA Announce Joint Event for September 2025
AGS and GIA Announce Joint Event for September 2025
Historical Reading List: Kashmir Sapphires
This reading list gives you an opportunity to learn more about the history of blue sapphires from Kashmir.
GIA Publishes New Book About Hollywood Jeweler William Ruser
GIA Publishes New Book About Hollywood Jeweler William Ruser
The story of the life and stellar jewelry career of William Ruser is brought to life in a newly published book
GIA’s 7thAnnual Jewelry Design Competition Celebrates Emerging Talent
Recognizing the outstanding talent of GIA jewelry design students from around the world globally
GIA Appoints Brandon H. Pace as General Counsel
Brandon H. Pace, an attorney with over two decades of legal experience in the financial and technology sectors, has been appointed by GIA
GIA Appoints Brandon H. Pace as General Counsel
