First, if you say appraisal, you have to ask the insiders around you to help you do it. It's not clear at all. Can you tell me where you bought it and tell what it is and whether it's true or false? What is the price?

Second, it doesn't matter whether you have a certificate or not. Certificates often mislead us, mainly by looking at the real thing.

I have a pair here, which is for lovers. It's the last pair. You can refer to it.