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Read MoreThis is an extended abstract of the article ‘Blue boron-bearing diamonds from Earth’s lower mantle,’ published in the 2018 August issue of Nature. GIA Researcher Evan Smith is the lead author of the article.
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Archival research and gemological characterization reveal the geographic origin of two emeralds set in a pendant linked to Catherine de’ Medici, Queen of France from 1547 to 1559.
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A rare transparent and near-colorless sodalite contains two-phase inclusions linking it to its ancient formation.
Read MoreModern gemologists use the word “jade” as a generic term for both nephrite and jadeite. These minerals have been linked throughout history.
Read MoreCARLSBAD, Calif. – Sept. 13, 2021 – In mid-August, as reported in the media, police in Surat, India, uncovered a fraudulent scheme involving counterfeit inscriptions linking lower-quality diamonds to GIA diamond grading reports for higher-quality stones.
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Article
Historians believe the link between humans and lapis lazuli stretches back more than 6,500 years.
Read MoreAntique and estate jewelry pieces can reveal many things about those who owned them. The use of certain gems and materials can often be linked to surprising revelations, and in certain cases, provide valuable clues about a family’s history.
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Article
Alethe Fatherley, executive director of Jewelers for Water, hasn’t always tried to link social justice with the jewelry industry – in fact, the idea of encouraging an industry that’s both responsible and profitable has only crystallized for the East Coast-based gemologist in the last several years.
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