Top 10 Rarest Gemstones on Earth

Most people think diamonds are the rarest gems on Earth. They're not even close.

There are stones so rare that museums fight over them, collectors pay millions per carat,

and most jewelers will never see one in their lifetime. These are the top ten rarest gemstones

that make diamonds look common. Number ten, Taaffeite. This gem was discovered

by accident when a gemologist thought he was buying spinel. Turns out it was a completely unknown

mineral. There are fewer than fifty faceted pieces in existence. Number nine,

Black Opal from Lightning Ridge. Not all opals, just these specific ones from Australia

that show lightning patterns of color worth more than gold per gram. Number eight,