This item has been stored at home for a long time. Please check the condition in the photos. Everything in the photos is included. If you have any concerns, I can provide close-up photos, so please feel free to comment. This necklace was made by Yamakatsu Shinju Co., Ltd., but it is not a pearl product. Due to the age of the item, detailed information is unavailable. Please understand that this is a current condition item and purchase accordingly. I have added photos of the clasp. There were two necklace chains inside the box. One has a silver marking on the clasp, but the chain of the necklace shown at the time of listing does not have a silver marking. Both chains will be included.