China Diamond grading GB Standards Search Result |
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1. Ready translated GB standards  and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within
1~3 days.
2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days . |
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GB/T 34543-2017 Yellow Diamond grading 黄色钻石分级 - 英文版 |
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GB/T 16554-2017 Diamond grading 钻石分级 - 英文版 |
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GB/T 16554-2010 Diamond grading 钻石分级 - 英文版 |
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GB/T 18303-2008 Color grading of polished diamond by visual matching 钻石色级目视评价方法 - 英文版 |
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