1.1 Freshwater Pearl Cultivation History

China is the earliest confirmed country for cultured freshwater pearls. The cultural technique of freshwater pearls can date back to Song Dynasty. In the book “ Wen Chang Za Lu” woter by Pang Yuanying in Song, we could find the most primary cultural technique of pearls in our history. The way to culture pearls is much simpler than we do today and do not form scientific theory base. It is similar to the cultural technique we are using presently.

1.2 Freshwater Pearl Today

China is the main producer of freshwater pearls around the world, taking up about 95% in the global volume. Today, artificial breeding has been realized no matter for the freshwater pearls or seawater pearls. It is pipless cultural technique that responsible for the 100% nacre of freshwater pearls. Now, as the improving of pipless pearls, people will devote to the research of nucleated full round freshwater pearls, fluorescent pearls and pearl craft with unusual shape.

At present, the pearl farmers are doing their best to culture freshwater pearls with major diameter and maintain the primitive colors. Through careful selection year in and year out, the farmers will culture the oysters with high quality for 7-8 years in order to get large size pearls.