I'm selling these because I like stones but no longer need them. Gaigotsu Crystal (I bought it under this name) Details such as size are unknown. Please judge from the photos. I have worn it several times. Please refrain from purchasing if you are looking for a new item or are overly concerned about condition. This is a sale of the item as is, so please be sure to look at the photos and agree to the condition before purchasing. Returns and exchanges are not accepted. I will wrap it in bubble wrap and ship it via Mercari delivery. I have a cat. Price negotiations are basically not accepted. (Negotiations for a price reduction of 100 to 500 yen are acceptable) Instant purchase is welcome.