What you do with it: The mauve-colored gem is thought to be more than a million times scarcer than diamonds. And while it's a bit too durable to use often in jewelry, if you're lucky enough to find one, don't let your hands off it.
What you do with it: Pharmaceuticals can be quite expensive largely due to the R&D investments that go into getting to the final product. Considered the world’s most expensive drug, Soliris treats a rare, life-threatening disease that destroys red blood cells more quickly than normal. A year's treatment could cost a whopping $569,000.
You could actually be at risk of the most expensive disease in America