China Business Federation Jewelry Quality Supervision and Testing Center is the only jewelry and jade jewelry quality supervision and testing unit approved by China Business Federation in the field of commercial circulation. The test results are authoritative and accurate, including all kinds of precious stones, jade, synthetic precious stones and artificial gem ornaments, and all kinds of precious stones and stones.
Yiwu Trade City Pearl and Jade Appraisal Center is an authoritative jewelry and jade appraisal institution recognized by Zhejiang Province. Testing pearls here is more professional, and the cost is about once in 200 yuan.