6.0mm Round White Japanese Cultured Akoya Pearl, Good Quality. These pearl strands display the near perfect roundness that Japanese Cultured Akoya Pearl strands are famous for. These pearl strands are 15.5-16 inches in length, and width of the pearls are between 6.0mm and 6.5mm. Some individual pieces may be slightly larger or smaller, but we try to keep it as close as possible when selecting your strands. . These pearls are great budget options. These cultured akoya pearls have some flaws or uneven surfaces and a lower luster than the other options, but are still good enough quality for most designs