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注册 2008-5-6
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| 发表于 2008-7-21 10:42 |
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* GIA Polish Grading(GIA抛光之分等)
Excellent, Very Good, Good, Fair, Poor
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* GIA Symmetry Grading(GIA对称性之分等)
Excellent, Very Good, Good, Fair, Poor
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* Girdle(腰部)
经刻面的钻石由侧面看去,中间连接冠部与底部有一环带部分成波浪状,称之为腰部或腰围。一般可分刻面腰围Faceted Girdle、抛光腰围Polished Girdle、粗糙腰围Rough Girdle。 
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* Growth Mark(生长记号)
生长记号为晶体表面反映生长过程的特征。钻石多以三角生长记号来辨识。 
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