I purchased these earrings a few years ago from a nearby jewelry store, but I haven't had a chance to wear them, so they've been stored at home. Please refrain from purchasing if you are overly concerned about minor details. The earring backs are stamped with "K18," although it may be difficult to see in the photos. Please understand. I was told that the brown stones are very beautiful amber. They are stylishly and carefully cut, and I believe the design is unusual for amber. Size (cm): Length: 2.7 Width: 1.1 Please understand that there may be slight variations due to amateur measurements. I purchased these at a jewelry store, but please understand that they are not high-end items, but rather casual pieces. Regarding shipping, I previously mentioned a earring case, but I will now be shipping them in the jewelry bag from the jewelry store in Shinsaibashi, Osaka, as shown in photo 4. Please understand.