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Sintered zirconia necklace
New Technologies and Techniques

Poster abstracts on “New Technologies and Techniques” from GIA’s 2018 International Gemological Symposium.

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Single-crystal CVD diamond
New Technologies and Techniques

Abstracts of speaker presentations from the “New Technologies and Techniques” session of GIA’s 2018 International Gemological Symposium.

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Color In Gems: The New Technologies

A discussion of work being done to enhance color in gemstones, as well as techniques used at the California Institute of Technology to detect whether colors are natural or enhanced.

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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.
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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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Technological Development in the 1990s: Their Impact on Gemology

In the last decade, technology has improved how we synthesize, process, identify, and otherwise study gem materials.

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New Technologies of the 1980s: Their Impact in Gemology

The 1980s witnessed great development in the application of new technologies to gemology.

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Fourth International Gemological Symposium: Identification Technology

Fourth International Gemological Symposium: Identification Technology

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