The Royal Family are the owners of some of the most priceless jewels in the world - whether that is St Edward's Crown, the Imperial State Crown or the Sovereign Orb and Sceptre. While this is the case, many other members of the The Firm also have their own collection of sentimental and staggeringly expensive gems.
Despite not being the most costly, Princess Diana's engagement ring is among the most iconic jewels owned by the royals. The impressive piece is now worn by The Princess of Wales and is comprised of a 12 carat oval sapphire surrounded by 14 round diamonds and is set in 18 karat white gold with an estimated value of around £390,000.
