These are K18 pearl earrings. Both the shafts and the catches are made of 18-karat gold, so they can be worn by people with metal allergies. Although they are new, please refrain from purchasing if you are overly concerned about details. Also, the pearls are natural, so each one has its own unique characteristics. Please purchase only if you understand this. (We do not accept claims after delivery.) If you like Mikimoto or Tasaki, how about these?