Sudama Co.,Ltd was established in 1989. Head office and factory located in Yamanashi Japan. Our company is a parts manufacturer that has been involved in the production and wholes of jewelry parts for over 35 years in areas of Japan where the Jewelry industry is thriving. We are able to develop high-quality parts with superior performance by drawing on our experience which we have developed for many years in the jewelry. The founder and current president of our company had developed silicon backs and pearls backs for earrings all around the world. Once you try using our products, you will immediately notice their superior quality as compared to other products. Our cut pearls are made by cutting the surface of pearls using our improved equipment and proprietary technology. These cut pearls shine with a stunning brilliance that far exceeds that of regular pearls. this is one example of the many wonderful products made in Japan that we have developed and released.