This is a beautiful pair of clip earrings with inlaid opals. The earrings are not marked and I do not know who made them. I have not tested the opals but they appear to be real chips and have a lot of fire. The earrings measure 3/4 of an inch in diameter. They are in very good condition and do not appear to have ever been worn. Please let me know if you have any questions. Thanks for stopping by.