Catrina, congratulate your self and rejoice - on owning such an exquisite pearl ring! If the ring comes from japan, there is a good chance, the pearls are cultured pearls. The only non-destructive test to determine if the pearls are Natural Pearls is to have them X-rayed. This is where it pays to have a good relationship with your dentist. Pearls have a similar chemical composition to teeth.
