Difference between National Testing Center and Jewellery Testing Center of Geological University

Hello ~ I'm a jeweler. The full name of the National Inspection Center is the National Jewelry and Jade Quality Supervision and Inspection Center. The National Inspection Center and the National Inspection Center are both nationally recognized testing institutions, and the certificates issued by them have legal effect. If we want to say the difference, we just test the price difference. Different gemstones have different testing prices. After all, the test method is different. I hope my answer can help you.

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