1: First of all, this certificate does not show the size of the diamond, so it is difficult to evaluate; Because it is a finished diamond ring, the brand itself has a premium, so it cannot be estimated by the price of diamond+ring. Generally speaking, the price of diamond ring is about 5000~8000 in 20 minutes, 4500 ~ 17 minutes, 1 carat more than 50 thousand.

2. The query result of the certificate QR code is Shanxi Jewelry Network, and the website belongs to "Shanxi Geological Survey Institute". The certificate should be fine. See if there are red seals such as CMA and CAL on the certificate, and the certificate with this logo will be more credible.