Update on Spectroscopy of “Gold Sheen” Sapphires
The chemical composition and spectroscopic characteristics of 14 gold sheen sapphires are examined.
Chart: Inclusions in Natural, Synthetic, and Treated Emerald
Provides a visual guide to the internal features of natural, synthetic, and treated emeralds.
Apatite Cluster in Orthoclase Feldspar
An apatite crystal cluster, notable for its morphology and size, is found in a feldspar specimen.
Update on Gemstone Mining in Northern Mozambique
Recounts an expedition to Mozambique’s important deposits of ruby, spinel, and tourmaline, which have yet to be fully explored.
Jaipur, India: The Global Gem and Jewelry Power of the Pink City
Examines Jaipur’s role as a colored stone cutting and jewelry manufacturing center, with profiles of 17 companies and their factory, trading, and retail operations.
Exhibition Review: *Illuminations, from Earth to Jewel*
A review of Illuminations, from Earth to Jewel, at the Museum of Mineralogy at the ParisTech School of Mines in France.
昆士兰蛋白石矿场：独特的澳大利亚砾岩蛋白石的产地
砾岩蛋白石正在变得越来越受欢迎。 澳大利亚的昆士兰中部是这种宝石的产地，有十几个砾岩蛋白石矿场。 和 GIA 实地宝石学家一起来了解关于这种独特宝石的更多信息。
大而罕见的钻石揭示地幔的内在活动
这是文章“来自于地球深层地幔中金属液体的宝石级大钻石”的扩展摘要，发表于2016年12月16日的《科学》 期刊。 GIA 博士后研究员Evan Smith（埃文·史密斯）博士是整篇文章的主要作者。
Diamond Growth from C–H–N–O Recycled Fluids in the Lithosphere: Evidence from CH₄ Micro-inclusions and δ¹³C–δ¹⁵N–N Content in Marange Mixed-habit Diamonds
Article was published in Lithos Volume 265, 68-81.
《Observations on CVD-Grown Synthetic Diamonds: A Review》（化学蒸气沉淀法培育的合成钻石观察：评述） (英语)
Explores statistical data and defining characteristics of gem-quality CVD synthetic diamonds examined by GIA since 2003.
“Punsiri”-type FTIR Spectral Features in Natural Yellow Sapphires
Testing of natural-color yellow sapphires from Australia and Thailand with the FTIR features of “Punsiri” heat-treated material.
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