I have done express delivery, and gold and pearl jewelry is a valuable item, so it is not easy to send it abroad. If you really want to send it abroad by express delivery, in addition to providing the invoice, commodity name and certificate of origin of each item, you need to consult the relevant exit management measures of banks and customs.

After all the formalities are completed, hand them over to the post office counter in person and issue relevant certificates, which is basically no problem.