A Study of Nail-head Spicule Inclusions in Natural Gemstones
Gagan Choudhary and Chaman Golecha
Copper-bearing Tourmalines from New Deposits in ParaÌba State, Brazil
Natural Type Ia Diamond with a Green-Yellow Color Due to Ni-Related Defects
Wuyi Wang, Matthew Hall, and Christopher M. Breeding
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! Enter coupon code GGALUM and a GIA Student Number at checkout.
Usually ships in 3-5 business days.