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Madagascar’s Zahamena National Park
Article
GIA Field Gemmologist Documents Madagascar Ruby Rush

Join GIA’s recent field expedition to the ruby rush in Madagascar’s Zahamena National Park.

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Exploring Zambia’s Emerald Mines
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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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Discover Mozambique’s Montepuez Ruby Mine
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Discover Mozambique’s Montepuez Ruby Mine with GIA’s Field Gemmologists

See inside the world’s most productive ruby mining operation with GIA’s field gemmology team.

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Exploring Madagascar’s Sapphire Mines
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GIA Field Gemmology Team Explores Sapphire Mines at Ilakaka, Madagascar

Tour one of the world’s most active sapphire mining areas - the island of Madagascar - with GIA’s field gemmologist Vincent Pardieu.

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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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Australian opal miner
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Chasing the Rainbow: Australian Opal Fields Expedition

Australia is the most famous source of opals in the world. The black opals from Lightning Ridge are the most valuable opals ever produced. Journey with us on this expedition to the Australian outback to see how these rugged individuals mine opals and why they chase the rainbow of colour.

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Article
Field Report: Diamond Mining in Minas Gerais, Brazil

A first-person account of diamond mining in Minas Gerais, Brazil, which has been a source since the early 1700s.

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Article
Behind the Scenes of a Gemmological Field Expedition

A field expedition is about the gems, the place they are mined from and the people who mine them.

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