These are K18 pearl earrings I received about 30 years ago. As I am not an expert, I cannot answer any questions about the pearls. Please make your judgment based on the images. I received them from someone of a certain standing, so I believe they are not of poor quality, but they are old, so please understand this before purchasing. Returns are not accepted. I am sorry, but I will not offer a discount. There is no case, so I will wrap them in bubble wrap and ship them via Yu-Packet Post Mini.