PD on a hoop usually represents palladium. Your ring could possibly be palladium-plated if it's got PD penned more than it. HK can be a trademark that means Harriet Kelsall. They style and design and provide jewellery all over the UK and to other locations in addition.  Place hallmarks: Some countries https://martinfzume.affiliatblogger.com/89120444/detailed-notes-on-jp88