In 1985, as an answer to why she did not think she would ever become Queen, Diana stated: “I do things differently, because I don’t go by a rule book, because I lead from the heart not the head.”

However, her engagement ring was not devoid of royal connection: “The ring is believed to be inspired by the Prince Albert Brooch, Prince Albert’s wedding present to Queen Victoria in 1840.”

It has since become a style staple of none other than Queen Elizabeth II.

Maxwell Stone stated: “Although Diana’s ring was purchased for £47,000 it’s now over six times more valuable, with an estimated value of £300,000.”

Prince Charles and Princess Diana were officially divorced in 1996, and Charles and Camilla announced their engagement on February 10, 2005, marrying later that year.