Unlike cultured freshwater pearls, natural freshwater pearls of excellent quality are extremely difficult to find or create. That’s because everything is left to nature. As such, maybe it’s not too hard to understand why freshwater pearls, in spite of its imperfections, are still incredibly more expensive than the best cultured pearls.
How Natural Freshwater Pearls Are Made The process of making natural freshwater pearls is exactly the same with the process of making natural seawater pearls. Firstly, a foreign object finds its way inside the mussel or oyster. It can be anything from a parasite to a tiny pebble. If the oyster isn’t able to take it out of its system, it will begin to feel irritated. To reduce its discomfort, it will start secreting nacre - which is the stuff that pearls are made of.
How Cultured Freshwater Pearls Are Made Pearl divers or makers will create a small opening in the oyster’s shells in order to insert mantle tissue from other oysters. The insertion will cause the freshwater oyster to start producing nacre. Pearl manufacturers can guarantee the outcome or quality of their products by taking control of factors like water temperature, the oyster’s health, and so forth. History of Freshwater Pearls Japan used to be the dominant figure in the cultured pearl industry. Having met success in their attempts in culturing pearls from saltwater mussels, they decided to conduct the same experiments with freshwater mussels from Lake Biwa. Their attempt was successful as well, and people were delighted to see new colors, colors that were never produced in saltwater pearls. As such, cultured freshwater pearls of Japan became so popular that all cultured freshwater pearls were referred to as Biwas in those days regardless of their origin.
Unfortunately, pollution caused great damage to Biwa cultured pearl production, and it was during this time that a new dominant figure emerged in the market: China. The country was blessed with numerous natural resources that the space-challenged Japan didn’t have: acres and acres of open land, innumerable lakes and other water bodies, and thousands and thousands of available human resources willing to work for less than minimum wages.Although the first few experiments of China in cultured freshwater pearl production were pretty much unsuccessful and understandably unappealing to the public, China was soon able to master the necessary techniques to create pearls that could not only surpass the quality of the best pearls produced by Japan but were also sold cheaper compared to other pearls. Chinese cultured freshwater pearls also came in a variety of colors, some of which Japanese cultured freshwater pearl makers were unable to reproduce.