#59: The Cullinan V Heart Diamond Brooch

Worn by: Queen Elizabeth II

Owned since: 1911

Estimated value: $9.4 million*

Diamonds are always a hit, especially when it comes to the royal family. Queen Elizabeth had this stunning brooch called the Cullinan V Heart Diamond in her collection. It was custom-made for Queen Mary in 1911 and features a whopping 18.8-carat heart-shaped diamond.

With such a big diamond and a rich history (it was once part of the biggest diamond ever discovered), this brooch could easily be worth over $9.4 million. No matter which generation, when it comes to bling, the Windsors sure know how to make a statement!