I found something about Sakata A quote "I know Sakata. I lived in Japan 1971 to 1975. Navy. Sakata Pearls were highyly recommended by a Japanese friend so I went up to Tokyo-met with company representative and they designed my necklace/bracelet with me. Choker (4 strand) and bracelet so I could extend the length of the necklace beyond the choker-when I wanted. They are beautiful. Sakata registered them for me. I came across your posting because today I am trying to organize my jewelery for my will. I wanted to get an idea of the value."