Our planet is full of precious minerals, non-precious minerals, vegetation, animals, organic matter, synthetic matter, psychotropic plants and rare metals. But if you believe that gold is the most valuable of them all, you are very much mistaken. Because although you may not be aware of it, there are many substances infintely more precious, valued at billions of euro a gram! Read on and find out for yourself.
1/ Antimatter
Antimatter is the most expensive substance in the world. Gold pales in comparison. And why? It is valued at 45,300 billion euro a gram. Antimatter may only exist in minute quantities in the universe, in cosmic rays or produced in laboratories.

2/ Californium 252
Californium is a radioactive and synthetic element in which the basic body is a metal. It is mainly used in nuclear reactors, for running thermal power plants and cement factories. Its price per gram is 19,590 billion euro.

3/ Diamond
The most expensive is the pink diamond, which can reach a value of 5 million euro per gram. All the same!

4/ Le tritium
Tritium is one of the radioactive isotopes of hydrogen. It is relatively rare in its natural state (you find around 1 atom of tritium for 1018 hydrogen atoms), and is emitted into the environment by nuclear industry. Its price per gram reaches 21,768 euros.

5/ Taaffeite
Taaffeite is a mineral that was discovered by Charles Richard Taaffe (1898-1967), and is considered one of the rarest gemstones in the world. Its price per gram can go up to 14,512 euros.
