The Most Expensive Celebrity Engagement Rings
Kate Middleton – $400,000
After meeting at the University of St. Andrews, Kate Middleton became engaged to her college sweetheart Prince William in 2010 after a very long relationship. Prince William proposed with one of his most sentimental possessions, Princess Diana’s engagement ring.
The 18-carat oval sapphire was surrounded by 14 diamonds, picked out by Diana in her engagement to Prince Charles. This ring was always going to belong to the future Queen of England and is essentially priceless in its worth.