If you want that the administration département answer to your question, you should send them more information about the pearl that you buy in Hong kong. Or at least sample. Nothing can be sure. Where does your wholesaler buy the pearls. What kind of pearls it is ?
The mail département of research is : annesandrine.talfer@perli.gov.pf
I send her your mail, but you can also send her a mail.
Hinerava