7. The engagement ring of Grace Kelly
Donn by: Monaco’s Princess Grace
Since 1956, the owner
Value Approximation: $38.8 million*
Grace Kelly’s engagement diamond is currently one of the most costly engagement jewels ever, valued at around $40 million after accounting for inflation. The ring was worth more than $4 million when Prince Rainier III proposed it in the middle of the 1960s. It was quite costly back then, and even though the Hollywood beauty who later became a princess has passed away, its worth has only increased.
The engagement ring for Grace Kelly ©Bettmann/Getty Images
The 10.48-carat diamond ring, manufactured by Cartier, is currently in the custody of the Grimaldi family. One of the most famous royal engagement rings ever is the emerald-cut diamond, which has made history.
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