Princess Diana among many other things is one of the greatest style icons, and long after her death too, people want to emulate her. This explains why the Natural Sapphire Company has come out with the largest natural blue sapphire ring, styled like Princess D’s. Coming from the famed gem mines of Ceylon (Sri Lanka), this stunning 69.35ct natural blue sapphire is ornamented in a ring nestled between sixteen 1/2 carat flawless diamonds that weighs over 8 carats. The stunning ring designed in the famous Princess Diana style which Prince William presented to Kate Middleton as an engagement ring. Priced at $ 1.5 million, this is the most expensive sapphire ring on sale in the world. And if a sapphire engagement ring is what you are looking form the company also offer smaller versions priced between $1,000 and $100,000, making it available for almost every pocket.