The Coscuez mine, one of a number in Colombia, is rapidly gaining significance as a major source of fine emeralds.

The Elahera gem field currently provides approximately 35% of the gemstones exported from Sri Lanka.

Chinese master carvers have produced some of the world's most sophisticated gemstone carvings.

Eight garnet species are defined and methods of identification are described.

An overview of the plentiful and various gem materials being discovered and produced in Afghanistan.

The author reports on a sudden influx of natural fancy pink diamonds and their origins.

An overview of Australia's recent significance in the production of blue sapphire.

A history of pearls in jewelry and fashions through the ages.

Unusual color-change garnets.

The unusual effects of dispersion and twinning produced by a calcite gemstone.

The unique mineralogical and gemological character of gem-quality red beryl from Utah.

The American freshwater pearl industry and its new entry, the freshwater cultured pearl.

First in a series, this article reviews the exploration for gemstones and mining methods in Minas Gerais, Brazil.

A survey of the current gemological knowledge of pegmatites, including the gem varieties aquamarine, tourmaline, and topaz.