PD on a hoop commonly signifies palladium. Your ring may be palladium-plated if it has PD composed about it. HK is a trademark that stands for Harriet Kelsall. They style and supply jewelry all around the United kingdom and also to other destinations in addition.  Can “JP” also stand for https://moneygame88900.ampedpages.com/a-simple-key-for-jp88-unveiled-63922839