Akoya cultured pearls
It was with Akoya pearl oysters that Kokicki Mikimoto began marine cultured pearl farming in Japan in 1916. Due to their longstanding history, these remain the classical white pearls sought by customers. Akoya cultured pearls come from the Pinctada fucata martensii oyster. They are typically farmed in colder waters than other marine cultured pearls and are characterized by thin nacreous overgrowth.
At present, Akoya pearl farming is also carried out in China and Vietnam.