PD on a ring typically signifies palladium. Your ring may very well be palladium-plated if it's PD composed over it. HK is usually a trademark that means Harriet Kelsall. They design and supply jewellery everywhere in the British isles and also to other destinations too.  Can “JP” also stand for https://fernandooakyh.blogars.com/35805369/detailed-notes-on-jp88