The Continuing Mystery of Pearls
Commercial quantities of natural marine pearls were also to be found in the waters of the Red Sea, the coast off Sri Lanka (Ceylon) and the seas of South and Central America, particularly Venezuela.
Freshwater pearls came chiefly from the rivers of Europe and China.
Australia, French Polynesia, Indonesia, Korea, and the Phillipines are all producers of a wide variety of cultured marine pearls, with China, Japan and the Mississippi area of North America farming freshwater pearls.