關於 gia 香港 gia 秉承誠信、學術、科學和專業精神的最高標準，致力於教育、研究、鑑定所服務和儀器開發。 gia 成立於 1931 年，是全世界鑽石、有色寶石和珍珠領域的最高權威機構。gia 香港充. Analysis & grading gia is the world’s most trusted name in diamond grading and gem identification. Established in 1931, the gemological institute of america (gia) is the world’s foremost authority on diamonds, colored stones, and pearls.
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A public benefit, nonprofit institute, gia is the leading source.
Established in 1931, gia is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
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Gia education story founded by a jeweler who identified a need to professionalize the industry, gia is a nonprofit institution committed to protecting and educating the public in the field of gems and jewelry.
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