5. Edward III Florin (1343)
Cost: $6.8 Million
Our oldest coin, which is approximately 670 years old, is currently valued at just below $7 million.
Its age is the main determinant of its value. This coin is believed to be the only one that has survived through the centuries.
This coin is not only one of the most valuable coins in the world but also one of the rarest. It’s highly unlikely that any other coins of this value will ever be discovered.
The current value of the coin is $6.8million. It was discovered in 2006 and sold at auction that same year.
Two of the remaining coins, which were found in the River Tyne, in 1857, are on display at the British Museum.