I believe this item is from Jewelry Tsutsumi. K10yg, with markings. I couldn't take a good picture of the markings. The stone in the middle, shaped like a star, is unknown. (It sparkles ☆彡) There is no warranty or box included. It has been used a few times, so the hook on the left side of image 5 might be slightly deformed, but there are no problems with its use. Please understand and agree to these points before purchasing. It sways and the star-shaped stone sparkles, so how about it for the coming season...? It's very cute ☆彡