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“Candelabra” Necklace
The Rock Hound: Muzo Emeralds and Ethical Practices

Susi Smither discusses her sustainable, responsible, and ethically based business practices.

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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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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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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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Trigonal growth features on a blue cap tourmaline termination
Tourmaline Termination

The blue cap termination from a tourmaline crystal was preserved and polished, yielding a unique designer gem.

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Tourmaline
Article
Tourmaline Description

Tourmalines come in a wide variety of exciting colors. In fact, tourmaline has one of the widest color ranges of any gem species, occurring in various shades of virtually every hue.

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“Ethics of Jewelry” panelists at the Met.
"The Ethics of Jewelry" at MetFridays

A summary of “The Ethics of Jewelry” panel, held at New York’s Metropolitan Museum of Art on January 25, 2019.

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This cabochon displays an unusual yellowish chatoyancy.
Chatoyant Quartz/Tourmaline Doublet

A unique doublet displaying a yellowish chatoyant sheen is examined by the Tokyo lab.

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Representative copper-bearing liddicoatite tourmaline from the study.
Article
Cuprian Liddicoatite Tourmaline

Analysis of tourmaline samples showing traditional Paraíba colors yields a surprising result.

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Six cuprian liddicoatite tourmalines
Cuprian Liddicoatite Tourmaline

Identifies 13 copper-bearing tourmalines, which have traditionally been assumed to be elbaite species, as liddicoatite.

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