The Most Expensive Stamp in the World

The most expensive stamp in the world is the 1856 British Guiana One-Cent Magenta. It is also considered the rarest. It sold at auction in 2014 for $9.5 million. What makes this tiny piece so rare and expensive? It has to do with the history behind it and how it is the only one of its kind.

The story of the magenta-colored one-cent stamp in the shape of an octagon started in 1855 in British Guiana…