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Smoky Quartz Ametrine from the Yuruty Mine
Ametrine with Layers of Smoky Quartz

An investigation of these Yuruty mine samples revealed an interesting new aspect to this bicolored quartz.

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Ametrine from Yuruty, Bolivia
Update on Ametrine from the Yuruty Mine, Bolivia

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.

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Colombian emerald crystal with prismatic habit.
Trapiche Emerald from Colombia

The examination of a nearly complete trapiche emerald crystal–which are difficult to obtain–is consistent with the findings of previous studies.

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3.71 ct pear-shaped Paraíba tourmaline
Thoughts on the Chinese and Japanese Gem Markets

Shahin Aboosalih of SR Trading shares his insights on the gem and jewelry industry.

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173.22 ct pink fluorite from Switzerland.
Unusual Faceted Gemstones

A look at the rare and unusual gem and mineral market.

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Moon Dance bracelet by Paula Crevoshay.
Moonstone Jewelry

The adularescent gem moonstone was prominently featured in this year’s Tucson shows.

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Transparent oval-cut orange sapphire with golden sheen.
Unique Orange Sapphire with Golden Sheen Effect Reportedly from Kenya

A transparent oval-cut orange sapphire showing a golden sheen effect is examined.

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“Rainbow lattice” specimens from Australia.
“Rainbow Lattice” from Australia

A rare gem material from Australia makes an appearance at the Riverpark Inn (Pueblo) Gem Show in Tucson.

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Trillion-cut blue hyalite opals.
Sourcing Stones with Columbia Gem House

Thoughts from a longtime Tucson exhibitor on responsible practices and the changing market trends.

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Five unheated Colombian sapphires.
Sapphires from Colombia

Unheated material from a sapphire deposit in southern Colombia is examined in GIA’s Carlsbad lab.

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