© Lucapa Diamond Company/Screenshot

One of the biggest diamonds in the world has been found according to ABC News. Angola Africa.

The giant $20 million massive 404-carat diamond was found in Angola by WA company Lucapa and its Lulo Diamond Project in Angola's Lunda Norte province, in the country's north-east. It is the biggest diamond ever found in Angola.

Lucapa chairman Miles Kennedy said it was a huge achievement.

- "We're not used to valuing 400-carat diamonds, but if we look at other diamonds slightly less weight than this, you're looking in the order of $20 million," Mr Kennedy said to ABC News.