Pendant top/necklace top purchased from an antique shop. Chain is not included. I don't know what era it's from, but it's not antique. It seems to be from a relatively new era. The silver-colored base sparkles with rhinestones, giving it a very elegant and beautiful atmosphere. It looks like Swarovski, but I don't know for sure. It doesn't come across in the image, but it sparkles quite a bit☆ It would be cute as a charm, etc. Please refer to the image for size comparison with a 100-yen coin. Material is unknown. It looks very beautiful at first glance, but unfortunately, one of the stones is missing. It's hard to see, but it's the second one from the top on the left edge. It was in this condition when I bought it. It's possible that more stones may come off in the future. If you are concerned, please refrain from purchasing. (Recommended for those who say, "It's okay!" or "I'll maintain it!") I will wrap it in cushioning material and ship it via Mercari delivery. If you purchase, please understand that there is damage.