An Early Byzantine Engraved Almandine from the Garibpet Deposit, Telangana State, India: Evidence for Garnet Trade Along the Ancient Maritime Silk Road
Analyzes the chemical composition and inclusion characteristics of this ancient artifact.
Black Diamonds from Marange (Zimbabwe): A Result of Natural Irradiation and Graphite Inclusions
Characterizes a suite of 40 natural brown to black diamonds from this deposit so that they can be distinguished from suspected treated black diamonds.
Natural-Color Blue, Gray, and Violet Diamonds: Allure of the Deep
Summarizes data collected on more than 15,000 natural blue/gray/violet diamonds examined by GIA during the last decade and examines the mechanisms that produce this color range.
Natural-Color Blue, Gray, and Violet Diamonds: Allure of the Deep
Summarizes data collected on more than 15,000 natural blue/gray/violet diamonds examined by GIA during the last decade and examines the mechanisms that produce this color range.
合成钻石的特征 (英语)
Presents a visual guide to the growth processes and major gemological spectroscopic features of synthetic diamonds.
The Challenges of Cutting a Large Gem Opal Rough (英语)
A first-person account of cutting a 3,019 ct piece of white opal to create a 1,040 ct gem with play-of-color across the surface.
蓝色钻石来自哪里？
这是《自然》杂志 2018 年 8 月刊中发表的文章“来自地球下地幔的含硼蓝色钻石”的延伸摘要。GIA 研究员 Evan Smith（埃文·史密斯）是这篇文章的主要作者。
GIA 奖学金帮助设计师建立专业技术能力、创造力
JDT program gives designer the skills and techniques – and freedom – to create the designs that move past the trends.
Book Review: Women Jewellery Designers
Review of Women Jewellery Designers by Juliet Weir-de La Rochefoucauld.
Characterization of Blue Sapphires from the Mogok Stone Tract, Mandalay Region, Burma (Myanmar)
The Mogok Stone Tract of central Myanmar (Burma) is one of the world’s most famed sources of colored stones, particularly ruby, sapphire, and spinel.