Diamonds are just carbon but are the hardest substance on Earth.

1 kilogram has an estimated street value of $100 million.

If a diamond is 'cooked' in an oven at 763 °C, it will simply vanish.

Diamonds are 100 times more valuable than gold.

Diamonds are commonly judged by the 'four Cs': carat, clarity, colour, and cut.

A diamond is 58 times harder than the next hardest mineral on Earth.

About half of all the worlds' diamonds come from Africa.

Belgium is the international diamond trading capital of the world.

The only way to cut diamonds is with other diamonds.