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XClear Selections
Mozambican ruby with signs of heat Treatment
Colored Stones and Pearls

December 4, 2018

Poster abstracts on “Colored Stones and Pearls” from GIA’s 2018 International Gemological Symposium.

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FTIR spectrum and DiamondView images of type Ib-IaA diamond
Diamond Geology

December 4, 2018

Poster abstracts on “Diamond Geology” from GIA’s 2018 International Gemological Symposium.

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Color distribution in nitrogen-doped CVD after irradiation and annealing
Diamond Identification

December 4, 2018

Poster abstracts on “Diamond Identification” from GIA’s 2018 International Gemological Symposium.

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Nephrite from Luodian, China
Gem Characterization

December 4, 2018

Poster abstracts on “Gem Characterization” from GIA’s 2018 International Gemological Symposium.

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Sapphires from Bingham Canyon (Utah) and Yogo Gulch
Gem Localities and Formation

December 4, 2018

Poster abstracts on “Gem Localities and Formation” from GIA’s 2018 International Gemological Symposium.

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Victorian Whitby jet
General Gemology and Jewelry

December 4, 2018

Poster abstracts on “General Gemology and Jewelry” from GIA’s 2018 International Gemological Symposium.

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Sintered zirconia necklace
New Technologies and Techniques

December 4, 2018

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

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Star rhodochrosite from the Sweet Home mine, Colorado
Colored Stones and Pearls

December 4, 2018

Abstracts of speaker presentations from the “Colored Stones and Pearls” session of GIA’s 2018 International Gemological Symposium.

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Inclusion features in Zimmi diamonds
Diamond Geology

December 4, 2018

Abstracts of speaker presentations from the “Diamond Geology” session of GIA’s 2018 International Gemological Symposium.

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Canary yellow diamond
Diamond Identification

December 4, 2018

Abstracts of speaker presentations from the “Diamond Identification” session of GIA’s 2018 International Gemological Symposium.

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