The hallmark is Birmingham 1993. Unfortunately I cannot tell you who the maker / sponsor is as there are no published comprehensive references for modern sponsors' marks. You will have to ask the Birmingham Assay Office to find out the answer to your question. Contact details are on their web site ...
Hello, I need some help with hallmarks on my earrings. I think it's a 925 A-1, but another one I'm not sure maybe CI589 or something. I can't find the answer. Thank you.