Category Archives: Pearls

Cultured Pearls

Japanese Akoya (saltwater) cultured and natural pearls are similar in that both have a nacreous coating formed around an irritant.  In the case of a cultured pearl the irritant is typically a mother of pearl bead only slightly smaller than the cultured pearl. Freshwater cultured pearls are tissue-nucleated and subsequently are not as spherical as […]

Freshwater Cultured Pearls

Chinese Cultured Pearls Pollution problems in Japan’s Biwa lake have lead to ever increasing demand for Chinese cultured pearls. Pearl farming in China dates to the mid 60’s. Until recently most of the pearls were of a low quality. Recently, pearl production and quality have advanced significantly. The typical freshwater mollusk is nucleated with 30 […]