There are thousands, if not millions, of different kinds of stones around the world.

While some are pretty common, others are almost impossible to come by.

Now I bet this has many of you thinking of diamonds, emeralds, and rubies.

But there are many stones that are much rarer than these sparkling specimens.

And while almost all gems are stones, not all stones are gems.

From rocks that are literally out of this world to glittering gems that glow in the dark,

let's take a tour of some of the rarest rocks, stones, and gems on Earth.

You're listening. You're listening. You're listening to be amazed. earth.

They say that diamonds are a girl's best friend, but I don't think those girls know about red diamonds yet.

Like their name suggests, red diamonds give off a phenomenally fancy red hue. But unlike rubies whose red color

comes from chromium impurities in their compact carbon structure, red diamonds don't have any

impurities at all. But this has left scientists scratching their heads. Without knowing for sure

what makes them red, it's impossible to determine exactly

how they form, making them all the more mysterious and valuable. That's because a diamonds value

isn't just about how big or sparkly it is, but how rare it is. And considering only 30 red diamonds

of gem quality currently exist, they might just be the rarest

rocks on the planet.

The largest of them all known as the Muciyev Red is just 5.11 carrots, meaning it weighs

just over a single gram.

Despite its small size, this red diamond's rarity saw itself for a bank breaking $8 million back in 2001.

So, considering the largest of them weighs less than a paperclip, if you collected all 30 stones together, they'd only weigh about as much as a single AA battery.

But based on how much the Moosef Red sold for, a red diamond the size of an AA battery

...