GIA 4Cs Guide

GIA 4Cs Guide的历史版本

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  2.0.1(20001)APK

  2019年07月13日29.5 MBAndroid 4.0.3+更新日志
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  2.0.1版本更新

  更新于2019年07月13日

  To align with the 2018 update to the Federal Trade Commission (FTC) Jewelry Guides, GIA updated terminology to “laboratory-grown” rather than “synthetic.”

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  2.0.0(20000)APK

  2018年03月11日29.5 MBAndroid 4.0.3+更新日志
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  2.0.0版本更新

  更新于2018年03月11日

  Redesigned GIA’s 4Cs app features video and interactive tools that teach consumers about how GIA grades color, cut, clarity and carat weight. It explains GIA’s D-to-Z color scale and how diamond color can affect value, GIA’s clarity scale and how diamond clarity can affect value, the factors that affect a diamond’s cut grade and the origins of the carat system.