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Turquoise with Fingerprint Pattern

A fingerprint pattern, possibly left by human skin oils during the assembly process, is observed in natural turquoise beads.

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Turquoise-Rock Crystal Composite

Examination of a faceted rock crystal backed by a slice of turquoise—an obvious but unusual combination of gem materials.

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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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Article
Live the Life of a Colored Stone Professional

Doug Hucker, CEO of the American Gem Trade Association (AGTA), gave real-world, practical tips to attendees at the 2009 Career Fair in Carlsbad.

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Colored Gems – Mine to Market
Article
Mine to Market: The ‘Adventure Story’ of Colored Stones

A GIA team travels the world to discover and document what happens as colored gems travel from mine to market.

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Mining site at Zahamena National Park, Madagascar
The Color of Responsibility: Ethical Issues and Solutions in Colored Gemstones

Examines the challenges of ethical sourcing and production of colored stones, and what some industry leaders are doing to address the situation.

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An Era of Sweeping Change in Diamond and Colored Stone Production Markets

The diamond, colored stone, and pearl businesses have witnessed unprecedented change since the turn of the 21st century.

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Rough tsavorite.
Revealing “The Angel in the Stone”: The Largest Known Square Cushion-Cut Tsavorite

A 283.74 ct rough tsavorite from Merelani, Tanzania, yields a square cushion-cut gemstone weighing 116.76 ct.

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Sustainably mined yellow sapphire with a transparent chain of custody.
Ethical and Sustainable Vertical Integration in the Sapphire Market

The recession of 2008 transforms a gem business into a vertically integrated operation.

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Grandics, wearing black-framed glasses, is behind a bouquet of point-shaped molds.
Article
Emerging Designer Wins Grant to Create Ethical Brand

Designer’s frequent world travels laid a foundation of creative experimentation, design inspiration and social responsibility.

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