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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.
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.
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.
新礦物以 GIA 理事 Barbara Dutrow 博士名字命名以示敬意
GIA 暫停鑽石密封服務
GIA 行政總裁 Susan Jacques 獲珠寶商警戒委員會頒發榮譽獎項
雖然存有不少疑慮，但根據蘇富比香港拍賣會，2019 年假日銷售預測仍然樂觀
U.S. holiday sales predictions look good. Sotheby’s Hong Kong auction features GIA alumna pieces.
