GIA ensures accurate gemological measurements across its global laboratories through rigorous metrology practices, including systematic instrument calibration, validation from traceable …

GIA Student Workrooms give you affordable access to all the equipment and gemstones you need to complete the practical requirements of your Gem Identification course through Online …

2020年10月29日 · GIA GGs - Tips for studying for GIA Gem 240 20 Stone Exam? Moderators: Stephen Challener, Barbra Voltaire, FGG, Alberto

To further that mission and support the trade, for a limited time GIA will reduce fees by 20% for GIA Diamond Dossier ® reports weighing less than 0.50 carats (from 0.15 to 0.49 carats). This …

gia，美国宝石学院，是一个非营利机构，它的经费由全世界珠宝业界人士捐献，主要服务珠宝鉴定及专业知识的教育与研究，深受全球珠宝业的认同。 GIA在50年代正式提出了4C的说法，为 …

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2017年1月22日 · I've finished all my labs and courses except for a couple of boxes in the Gem ID course, and will soon take the 20 stone. Problem is that I've consistently missed multiple …

2007年4月18日 · I am currently nearing the end of my Gem Id course and will be doing the 20 stone exam in the near future. Could anyone provide information on what to expect in the …

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 4 of 27 2. Introduction The GIA20EB is a microprocessor controlled displaying, monitoring and …

太豐匯20樓 在GIA收到您所需的所有文件和付款，並且收到GIA的正式書面確認後，您的錄取才會被確認。 GIA將通知你的申請是否被接受或拒絕。