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Diaz needs to crouch low as he makes his way through jungle terrain with a backpack on. He wears boots and gloves to protect him on the uncut path.
Article
30-Year Marine Corps Veteran Fulfills Dream of Becoming a Field Gemologist

The rigors and often-harrowing conditions of gemology field expeditions are no match for 30-year Marine veteran with a love of gems.

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Multi-colored gems are superimposed on an image of glacier peaks.
Article
Gems and Minerals from the Subarctic

Circumnavigate the boreal reaches of the globe to explore gems from polar regions.

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Rubies and Sapphires from Winza, Central Tanzania

Since late 2007, rubies and sapphires have been mined by hand methods from both eluvial and primary deposits at Winza in central Tanzania.

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Ruby-bearing gravel bed in Mugloto.
Update on Gemstone Mining in Northern Mozambique

Recounts an expedition to Mozambique’s important deposits of ruby, spinel, and tourmaline, which have yet to be fully explored.

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A close-up image of a pile of rough diamonds.
Article
Ups and Downs of 2016 Make for an Uncertain 2017

The diamond industry was slow to recover in 2016 and colored gems got a welcome shot in the arm. Mixed signals leave no clear indicators for 2017.

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A large ruby crystal in calcite with three faceted rubies in front.
Article
Economists See Bright Holiday Season

National Retail Federation predicts a strong increase in holiday sales; U.S. ban on Myanmar ruby, jade lifted; diamond market report.

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Pegmatite Pits in Nigeria
Gem Localities of the 2000s

The past decade saw some impressive discoveries of diamonds and colored stones.

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Mogok Valley
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Mogok Expedition Series, Part 1: The Valley of Rubies

An expedition to the Mogok area of Myanmar documents the current state of their ruby mining, markets, and cutting industries. This exotic land, known as the "Valley of Rubies," is one of the world’s most famous gemstone sources.

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Indian necklace
Article
Jewelers to the Maharajas of Jaipur and Modern-Day Moguls

Enter a world not well-known in the West—the world of the maharajas and their jewelry, coveted by the modern-day moguls of business, entertainment, and royalty. See the fantastic works of art made today in the form of enameled Kundan meena jewelry and the regal look of polki diamonds.

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Article
Corundum Source Types

Learn more about corundum sources and GIA’s source type classification system, detailing the relationship between source type and geographic origin.

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