PD on a ring commonly signifies palladium. Your ring might be palladium-plated if it has PD prepared about it. HK is a trademark that stands for Harriet Kelsall. They design and style and supply jewellery everywhere in the British isles also to other places also.  Region hallmarks: Some nations around the https://remingtonmbodo.blogitright.com/37236436/jp88-no-further-a-mystery