Freshwater pearls are produced my mussels and are commonly found in lakes and rivers in China. Originally, freshwater pearls were found to be more irregular in shape and less lustrous, however, due to advances in technology, the quality of freshwater pearls has improved remarkably in their range in color, shape, luster, and quality. Today's freshwater pearls are sometimes likened to Akoya pearls, which are expensive saltwater pearls. Freshwater pearls serve as a less expensive option to Akoya pearls, which are approximately five times more expensive. However, unlike Akoya pearls, freshwater pearls are generally smaller, more irregular in shape, and often not well matched on a strand.