Simple onyx earrings, vintage (with case). My family bought these in Hawaii a long time ago, but they are unused. (MAUI DIVERS HAWAI) I've kept them carefully, but I'd like to pass them on to someone who will use them. Thank you very much. Material: Onyx, approximately 9mm in vertical diameter Marking: 12KGF These have been stored at home for a long time. Please refrain from purchasing if you are sensitive to this. Thank you for looking.