A hedge fund has acquired one of the rarest coins in the world for more than $7 million.

It turns out a half dime can be worth a pretty penny.

A coin collector paid a record $8.5 million for a set of rare coins said to have been a gift from former President Andrew Jackson to the King of Siam.

The first U.S. gold coin, hand-struck in 1787 by a goldsmith who was George Washington's neighbor and called the single most important coin in American numismatics, was purchased for $2.9 million last month by Steven L. Contursi, a rare coin broker from Laguna Beach.