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A man and woman shake hands during a career fair event. In the background is a GIA poster.
Article
Adapting to Changing Workplaces

GIA Career Service advisors offer tips on how to navigate the changing workforce and consumer attitudes for success in the gem and jewelry industry.

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Large, fine-color tanzanites
Natural-Color Tanzanite and Yellow Sapphire – Tucson 2014

Fine unheated tanzanite, untreated yellow sapphire, and heated pink zircon on display at GJX in Tucson.

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Large Sri Lankan alexandrite
Fine Corundum, Paraíba Tourmaline, and Alexandrite – Tucson 2014

Updates on the corundum, paraíba tourmaline, and alexandrite markets from the 2014 gem shows in Tucson, Arizona.

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Titanium-Bearing Synthetic Alexandrite and Chrysoberyl

Overview and commentary on the 2013 Journal of Gemmology article “Titanium-Bearing Synthetic Alexandrite and Chrysoberyl.”

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Mixed-cut Oregon sunstone
Oregon Sunstone Update

An review of the Oregon sunstone seen at the Tucson gem shows.

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Article
A Sunstone Odyssey, Part 1: The Ponderosa

The first of a three-part series exploring Oregon’s state gem reports on a July 2013 visit to the Ponderosa mine, a prolific sunstone source surrounded by majestic ponderosas.

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Large sunstone rough from the Ponderosa mine in Oregon
Ponderosa Sunstone Update

John Woodmark provides an update on the Ponderosa sunstone mine in Oregon.

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Short-wave UV exposure’s effect on zircon color
Tenebrescent Zircon

Color modification is observed in a reddish orange zircon at the Bangkok laboratory.

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Recent production of turquoise from Polk County, Arkansas
Turquoise from Western Arkansas

A report on turquoise from the only known U.S. deposit outside of the Southwest.

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 Hand holding tube-shaped boulder opal
Article
Queensland Opal Fields: Home of the Unique Australian Boulder Opal

Boulder opal is becoming more and more popular. Australia’s central Queensland is the home of more than a dozen of sources of this stone. Come with GIA field gemologists to find out more about this unique gem.

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