Mary L. Johnson, Shane Elen, and Sam Muhlmeister
Sapphire and Garnet from Kalalani, Tanga Province, Tanzania
Antonin V. Seifert and Jaroslav Hyrsl
Russian Synthetic Ametrine
Vladimir S. Balitsky, Taijin Lu, George R. Rossman, Irina B. Makhina, Anatolii A. Mar'in, James E. Shigley, Shane Elen, and Boris A. Dorogovin
Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).
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