This product is the top only. The chain is not included. Please understand that there may be stains, scratches, dullness, and deterioration that cannot be seen in the photos. This is an item with unknown details and unknown material. I cannot answer any questions as I do not know the details. I do not know the material of the stone either. This is an item offered with a focus on design and quantity, so please understand that I do not know the details of each product. Since the material is unknown, please understand that it is best to purchase this item as an imitation or plated accessory. It is old, but I would be happy if someone could use it. Please refrain from purchasing this item for precious metal purposes as the material is unknown. Please read through the entire description and purchase only if you are satisfied. This is an old item, so there is also age-related deterioration. I am not an expert, so I cannot answer detailed questions. Please understand that the product may have scratches and stains, and that the above explanation applies before purchasing. Cancellations due to reasons such as "the material was not what I expected" or "it's different from the image" are not accepted. #Retro #Showa #AntiqueNecklace #Vintage #Accessories