Celebrating 75 Years of Gems & Gemology Stuart Overlin and Dona M. Dirlam
The “Type” Classification System of Diamonds and Its Importance in GemologyChristopher M. Breeding and James E. Shigley
Spectral Differentiation Between Copper and Iron Colorants in Gem TourmalinesPaul B. Merkel and Christopher M. Breeding
Gem-Quality Andalusite from BrazilShyamala Fernandes and Gagan Choudhary
Characterization of Peridot from Sardinia, ItalyIlaria Adamo, Rosangela Bocchio, Alessandro Pavese, and Loredana Prosperi
Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).
GIA student and alumni save 10% on back issues.