Bahrain - A new classification system for pearls, similar to the grading system for diamonds ... positive effect on the natural pearl market by creating a conversation about cultured pearls among ...

He's a gemologist at the Gemological Institute of America where he oversees diamond grading ... pearl, which brings us to one quality that determines a pearl's value. Natural versus cultured.

He said artificially made “cultured” pearls such as Tahitian ... they will not let her keep the jewelry overnight, even though her office is secured with a fob system, cameras, and a heavy ...