The fabulously wealthy Hedge fund manager and investor, Louis Moore Bacon, gained the lease for Robins Island. Located beside the coast of Long Island, it cost $11 million in 1993.
Louis Moore Bacon is also a conservation philanthropist who created The Moore Charitable Foundation to provide financial aid to nonprofit organizations that strive to conserve and protect the environment and wildlife.
Dean Kamen
Many people might not know who Dean Kamen is, but we all certainly know what a Segway is. Dean Kamen is the inventor and creator of Segway and, apparently, now he is wealthy enough to afford his own private island!
Kamen didn't purchase his property in the Bahamas, as many other rich and famous people do, but bought a small 2-acre island in the state of New York.
Larry Ellison
Larry Ellison, the co-founder of Oracle, the second-largest software company in the world, has also bought his own private island, which was purchased around $500 and $600 million.
It's absolutely an impressive amount of money, and it's actually the most expensive private island on this list!
The Emir of Qatar
The Emir of Qatar has set aside a not-too-modest amount of $11 million to pay for this collection of six Greek islands in the Ionian Sea.
The Emir of Qatar is the king and leader of the state of Qatar, and since June 2013, Tamim bin Hamad Al Thani is the current Emir.
Roman Abramovich
The Russian magnate Roman Abramovich acquired St. Petersburg's New Holland Island back in 2010. He bought the already developed island with the purpose of building a $400 million art museum.
The island had reopened to the general public in a reduced capacity in 2011 before becoming a year-round public area in the summer of 2016.