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  • GIA權威評級, 為摯愛守護一生

    CARLSBAD, Calif. – Dec. 2, 2021 – The joy diamonds bring to people’s lives and the confidence inspired by a diamond grading report from the experts at GIA are at the center of GIA’s first new global consumer marketing campaign in more than a decade.

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    以色列拉馬特甘 GIA 鑑定所停止營運

    The GIA laboratory in Ramat Gan, Israel, will end operations by the end of 2024 due to changes in the global diamond industry that resulted in significant declines in submissions from local clients over the last several years.

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    GIA推出紙質版AGS Ideal報告

    GIA is now offering printed AGS Ideal® Reports.

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    GIA 於 10 月 1 日推出更新版的實驗室培育鑽石服務

    GIA will launch revised evaluation services for D-to-Z laboratory-grown diamonds on October 1

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    第六屆年度珠寶設計大賽 GIA彰顯新秀風采

    As a leading educational institute, GIA helps educate the next generation of gem and jewelry professionals in gemology, jewelry design and jewelry manufacturing arts.

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    GIA恢复提供纸质版钻石鉴定精简版报告

    GIA will return to producing printed GIA Diamond Dossier reports beginning April 9.

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    GIA推出更經濟的實驗室培育鑽石精簡版報告

    The Gemological Institute of America (GIA), the leading gemological grading and identification organization, is now offering a lower-cost GIA Laboratory-Grown Diamond Report - Dossier.

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    merit-based-scholarship-application-period-open

    GIA has opened the scholarship application period for merit-based scholarships.

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    hanadama-quality-range-comment-added-to-pearl-classification-reports

    GIA is adding a report comment for the historical trade term 'Hanadama' to distinguish a designated quality range of cultured Akoya pearls.

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    GIA研究人員發現全新的尖晶石處理方法

    Scientists at the GIA laboratory in New York City recently discovered spinel treated by nickel diffusion in a parcel of gems acquired for research purposes by the GIA research team in Bangkok.

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    悼念前 GIA 理事 Rodney Ewing 博士

    Dr. Rodney Ewing, a member of the GIA Board of Governors from 2006 to 2015, passed away earlier this month at age 77.

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    gia-supports-diamond-traceability-solutions

    As consumer and government demand increases for credible country-of-origin information for polished diamonds, GIA, whose mission is to protect consumers and ensure their trust in gems and jewelry, supports all workable solutions that will provide that vital information.

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