This section, from the Winter 2008 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

A systematic study of 15 neutron-irradiated blue topaz samples was conducted using high-purity germanium (HPGe) digital gamma-ray spectroscopy.

The Anahí mine, Bolivia, has produced large amounts of amethyst, citrine, and amethyst-citrine for the gem market.

This article, from the Winter 1999 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

This section, from the Summer 1987 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

The island of Borneo is one of the oldest known —and least reported on—sources of diamonds.

This section, from the Summer 1988 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

“Gemstones”; “Channel Setting Diamonds”

This section, from the Summer 1989 issue of Gems & Gemology, is a compilation of interesting finds from GIA's laboratories.

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.

“Gems and Jewelry Appraising”; “Dictionary of Gemmology,” 2nd Edition