Hello, I am a pearl processing and wholesale company in Zhuji. I don't know the style of this pearl you are talking about, but pendants are usually made like this: the pendant Tory has a protruding needle similar to a screw, and the pearl needs to be punched, and then the needle is put into the pearl and glued with special glue, which is how it is done.

I hope it helps you. If you have any other questions, you can add a private letter for consultation.