PD on a hoop usually signifies palladium. Your ring can be palladium-plated if it's PD created around it. HK is usually a trademark that stands for Harriet Kelsall. They design and style and provide jewelry everywhere in the United kingdom also to other spots also.  The Sun refers back to https://emiliofhjln.blogcudinti.com/37192589/the-definitive-guide-to-jp88