The PDF version of this issue is available at no charge. Visit www.gia.edu Characterization and Grading of Natural-Color Yellow DiamondsJohn M. King, James E. Shigley, Thomas H. Gelb, Scott S. Guhin, Matthew Hall, and Wuyi WangEmeralds from the Kafubu Area, ZambiaJ. C. Zwaan, AntonÌn Seifert, Stanislav Vr·na, Brendan M. Laurs, Björn Anckar, William B. Simmons, Alexander Falster, Wim Lustenhouwer, Sam Muhlmeister, John I. Koivula, and Héja Garcia-GuillerminetMt. Mica: A Renaissance in Maine's Gem Tourmaline ProductionWilliam B. (Skip) Simmons, Brendan M. Laurs, Alexander U. Falster, John I. Koivula, and Karen L. Webber 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 students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout. Usually ships in 3-5 business days. SKU: 430503
