Uncover the British Monarchy's Stunning Jewelry Collection

2. The engagement ring of Princess Diana

Donn by: The Duchess of Cambridge, Kate Middleton Since 1981, the owner Value Estimate: $100,000 Prince Charles defied convention when he asked Diana Spencer to marry him in the early 1980s. He let Diana choose what she wanted from the royal collection rather than giving it to her. The now-famous blue sapphire and diamond ring was the end result. Charles paid $36,000 for it at the time.

The Engagement Ring of Princess Diana @stylebistro / Pinterest The stunning ring is currently valued at $100,000. When Prince William asked Kate Middleton to marry him back in 2010, it thrilled supporters. Kate rightfully cherishes the piece. There aren't many heirlooms like this one around. It is not just a significant historical artifact but also holds a unique place in Kate and Will's family history. Although Will and Harry are the product of the marriage, which is reason for celebration, some may argue that it symbolizes one of the most well-known failed unions in history.