Jewelry cleaning is generally cleaned with a thin HCL solution. How do you ask gold? Thank you!

Start a bracelet and say that it is Bingbu chicken is emerald? How much is worth it?

Can the masters who understand the jadeite help me see? Is this a black chicken? When I bought it, I said this is a black chicken, and it is only a few hundred

I am an ordinary student in Hefei. I want to make some money to make some money. Which wholesale some small jewelry, small dolls and small things to put things?