5. Taaffeite – up to 20,000 per gram
It comes in numerous colors from grayish violet to mauve, or even colorless.
This beautiful gemstone mineral is more than a million times scarcer than diamonds.
It’s basically impossible to come by such a substance!
That’s why you’ve probably never heard of it before now!
But if you do, it is worth a fortune! Just a few grams of it could turn your life around!
