Thank you for viewing! This is a single earring. The post and catch are K18 (stamped). The stone is unknown (I think it was probably a ruby, but my memory is vague). It's a cute, slightly dangling type. The post is slightly bent. There is adhesive at the joint, so there is some cloudiness in that area. Otherwise, it's shiny. Please check the photos. I used it a few times, then lost one and stored the other for a long time. I would appreciate it if you would consider this item, understanding that it is a used item. Thank you very much.