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Rough Emerald
Article
Emerald Description

Emerald is the green to greenish blue variety of beryl, a mineral species that also includes aquamarine as well as beryls in other colours.

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Exploring Zambia’s Emerald Mines
Article
GIA Field Gemmologists Visit Zambia’s Emerald Mines

Go onsite to Zambia’s emerald mines with GIA’s field gemmology team.

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On the Trail of Africa’s Hidden Gems
Article
On the Trail of Africa’s Hidden Gems with GIA’s Field Gemmologists

Visit gem mining areas in Madagascar, Kenya, Tanzania, Zambia and Mozambique with GIA’s field gemmologists.

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Emerald and diamond brooch.
Article
Jewels of Hollywood: Accessories and Jewellery that Made the Stars Shine

“Jewels of Hollywood”, on loan from the Kazanjian Foundation, showcases some of the jewellery and accessories associated with Hollywood royalty.

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A large group of people outside on GIA’s Carlsbad, California  campus.
Article
Guardians of Trust: GIA’s Innovative Research, Instruments and Services

GIA’s services and instruments have grown in importance and impact as new gem treatments and laboratory-grown gems have entered the market.

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Dr. E. J. Gübelin Collection Corundum
Article
GIA's Gübelin Gem Project: Corundum

Ruby and sapphire (usually blue, but also in every other colour) have been the most important coloured gemstones for several thousand years. Originating historically in south-east and central Asia, and more recently in eastern Africa, these coloured varieties of the mineral corundum have been much sought as gems because of their rarity, colour and durability. Gem corundum can display asterism and chatoyancy due to the presence of oriented mineral inclusions, and in some cases, a change of colour when viewed under different light sources.

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Dr E. J. Gübelin Collection Beryl
Article
GIA Gem Project
Beryl

Chemically pure beryl is colourless, but trace elements give rise to green, blue and pink/red colours.

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Gem materials and in front of rare books.
Article
Top 10 Digital Reads from the GIA Library

Explore GIA’s collection of free, rare digital books and manuscripts that document the history of gems and jewellery.

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Emerald
Article
Emerald Quality Factors

Learn about the factors that make emerald so desirable.

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Article
Emerald Journey

Emerald is the green to greenish blue variety of beryl, a mineral species that also includes aquamarine as well as beryls in other colours.

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