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英文字典中文字典相关资料:


  • Gemological Institute Of America | All About Gemstones - GIA
    Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services
  • My GIA
    You can manage your team members and provide access to My Laboratory, update payment preferences, view open balances and create shipping memos Also, view and manage the status of your items being graded at a GIA laboratory, add services, print reports, download GIA report PDFs and much more
  • GIA - Report Check
    GIA reports represent the highest standard of reliability, consistency and integrity And now, GIA Report Check is available for all GIA reports, providing you with an additional level of assurance
  • The GIA Difference - GIA. edu
    Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry
  • GIA Education Story | GIA Education
    Elevate your career in gems and jewelry with a diploma from GIA Learn how GIA’s curriculum prepares you for careers in gemology, jewelry design and more
  • Analysis Grading - GIA. edu
    GIA’s groundbreaking research and unbiased grading and analysis set the global standards that protect the gem-buying public With campuses, research centers, and laboratory facilities around the world, GIA is the world’s foremost authority in gemology
  • About GIA | GIA 4Cs
    As a charismatic businessman originally from Los Angeles, CA, he positioned himself as a jewelry expert, but it was his lack of expertise that started him on the path that led to the founding of GIA—the Gemological Institute of America
  • Diamonds with the 480 nm Absorption Band, the Morphology of Macle . . .
    Our lead article by GIA’s Dr Mei Yan Lai offers a perspective on natural diamonds with a broad absorption band centered at 480 nm in the visible spectrum This category deserves more attention as it includes rare and sought-after pure orange and color-change chameleon diamonds Dr Lai summarizes the properties of these unique gems
  • Gemological Institute Of America | We Grade The Worlds Most Precious . . .
    We Grade the World’s Most Precious Diamonds, Including Yours Feel confident you're choosing the best with a diamond graded by the experts at GIA Learn More
  • GIA Diamond Grading | GIA 4Cs
    GIA is an independent, impartial entity that conducts research, grades diamonds and gems, and educates students, professionals and the public on the quality of these materials





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