圣卡洛斯橄榄石 (英语)
Marketed throughout the world, San Carlos material is often confused with, and sold as, peridot from localities that are better known and documented.
Lapis-Lazuli from Sar-E-Sang, Badakhshan, Afghanistan
apis-lazuli is an ornamental stone (figure 1) that has been found in the artifacts of some of the oldest known civilizations.
Ruby in Diamond
The first substantiated identification of corundum (var. ruby) occurring as an inclusion in natural diamond is presented.
Photographing Inclusions
A discussion of the techniques important in producing top-quality photomicrographs.
Heat Treating Ruby and Sapphire: Technical Aspects
A review of heat treatment methods available for use on natural or synthetic corundum.
Color In Gems: The New Technologies
A discussion of work being done to enhance color in gemstones, as well as techniques used at the California Institute of Technology to detect whether colors are natural or enhanced.
哥伦比亚的祖母绿 (英语)
A comprehensive review of the history and geology of Colombian emeralds together with descriptions of some of the most famous gems to come from this locality.
Zabargad: The Ancient Peridot Island in The Red Sea
A report on the island of Zabargad and the peridot for which it is known.
Artificially Induced Color in Amethyst-Citrine Quartz
A new and rather unusual gem material and possible treatments are discussed.
The Hidden Beauty of Amber: New Light on an Old Subject
The surprising inner world of inorganic inclusions in amber is explored through the use of polarized light and microscopic techniques.
GIA检测34.59克拉化学气相沉积法（CVD）实验室培育钻石
GIA 香港分校开放日
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.jpg "YMAL GIA Ed")
