Mission, Staff & Governance
GIA's mission is to ensure the public trust. Institute leadership includes a board of governors, executive staff, and directors of laboratories and campuses worldwide.
CVD Diamond Over 34 Carats
Jewels of the Edwardians
Although the reign of King Edward VII of Great Britain was relatively short (1902-1910), the age that bears his name produced distinctive jewelry and ushered in several new designs and manufacturing techniques. During this period, women from the uppermost echelons of society wore a profusion of extravagant jewelry as a way of demonstrating their wealth and rank. The almost exclusive use of platinum, the greater use of pearls, and the steady supply of South African diamonds created a combination that will forever characterize Edwardian jewels. The Edwardian age, truly the last era of the ruling classes, ended dramatically with the onset of World War I.

Chart: Inclusions in Natural, Synthetic, and Treated Ruby
A Synthetic Diamond Overgrowth on a Natural Diamond
Cuprian Liddicoatite Tourmaline
GIA Education Available in Shenzhen, China
CARLSBAD, Calif. – Aug. 19, 2019 – Aspiring gem and jewelry professionals in Shenzhen, China will now have direct access to GIA education programs through Peking University Resource College.
Introducing the GIA Gemolite® NXT Microscope
Compare D-to-Z Diamond Grading Reports

GIA CEO Susan Jacques Honored by Jewelers Vigilance Committee
GIA Launches Updated Laboratory-Grown Diamond Services October 1
GIA will launch revised evaluation services for D-to-Z laboratory-grown diamonds on October 1
GIA’s 7thAnnual Jewelry Design Competition Celebrates Emerging Talent
Recognizing the outstanding talent of GIA jewelry design students from around the world globally
