$100 million – Ronde Island, Grenada

Located in that most famous of tropical paradises, the Caribbean, Ronde Island was recently the king of all private islands with its hefty price tag, but has since been knocked from the top spot. For your cash, you’ll be purchasing a 2000 acre slice of paradise, practically a country in itself. The lush scenery is truly a marvel to behold, with water visibility of up to 100 feet, plentiful sea life, stalactite and quartz crystal-decorated swim-through caves.

Posted in: the Most Expensive Private Islands in the World