By Ayeesha Walsh When Prince Harry popped the question to Meghan Markle her incredible engagement ring was crafted in a setting that included two diamonds that belonged to his late mother Princess Diana. Harry lovingly designed the piece himself giving it not just a huge monetary value but also an incredible sentimental worth. But the lavish item doesn’t come without it’s problems – the upkeep is an ongoing issue according to a jewellery expert. Meghan has even altered the design herself over the years with it undergoing a transformation just under two years after the Duke Of Sussex proposed t…