Pearls are created by inserting a round piece of shell called a “nucleus” into an Akoya oyster. The oyster then forms layers of nacre around that nucleus, eventually creating a pearl.Incidentally, pearls without a nucleus, made only of nacre, are called Keshi pearls.In this video, I will show you part of the process of how … Continue reading How Are Pearl Nuclei Made? — Inside a Pearl Nucleus Factory