a pearl that comes from a specific region in Lake Biwa, Japan
A non-nucleated cultured pearl from Japan's largest lake, Lake Biwa.
A mantle-tissue, nucleated, freshwater cultured pearl from Lake Biwa, Japan. Properly called a freshwater pearl.
Any freshwater cultured pearl grown in Lake Biwa, Japan. Industrial pollution all but eliminated pearl culturing from the region. Lake Kasumigaura farmers have been attempting to restore what was lost in Lake Biwa.
Cultured freshwater pearls that are grown by a freshwater mussel located in Lake Biwa in Japan. Recently, the U.S. Federal Trade Commission ruled that the term "Biwa pearl" may be used to describe any freshwater pearl that comes from any freshwater mussel in Japan.
Originally, this term referred to a cultured freshwater pearl from Lake Biwa, a large lake near Kyoto, in Japan. However, the U.S. Federal Trade Commission has extended the use of this term to any pearl cultivated from Japanese freshwater mussels.
Biwa pearls are freshwater pearls from Lake Biwa in Japan. These irregularly-shaped pearls are smoother and more lustrous than most other freshwater pearls.
