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Standard
| GB/T 16554-2010 Diamond grading (English Version) |
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Detail of GB/T 16554-2010
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Introduction of GB/T 16554-2010
本标准规定了天然的未镶嵌及镶嵌抛光钻石的术语和定义、钻石颜色、净度、切工的分级规则、钻石质量和钻石分级证书。
本标准适用于珠宝玉石鉴定、文物鉴定、商贸、海关、保险、典当、资产评估以及科研教学、文献出版等领域的钻石分级及相关活动。
Contents of GB/T 16554-2010