It should be a pearl inlaid with metal.

This kind of metal, if it is gold, if you can see the real thing, you should look carefully and see how it is inlaid. Pure gold is soft, and the inlay is not necessarily firm. Or ask, if there is a problem with inlay, how to solve it after sale. .

If it's gold, it's nothing. K-gold inlay will be more secure. . .