The Bookmark is marked on the back with "Mikimoto International" and "18-8" for authenticity. It is still in the original box and never used. The pearl is in tact and attached with no flaws. Included is a small paper of authenticity. Stainless steel 18% chrome and 8% nickel. Approximately 4 3/4 inches length. There is slight wear on the outside of the box from storage and super small brown mark on the paper