Rappers are famous for their love of bling, and whether it's diamond-encrusted grilles or enormous rings, it seems to be that bigger is better in the hip-hop world.

But one artist has taken it upon himself to educate the music business about the bling they shouldn't touch.

Kanye West, famous for his Diamonds from Sierra Leone song, has teamed up with fellow members of the rap fraternity Paul Wall, Jadakiss and Raekwon for a hard-hitting expose on the illegal diamond trade.

Bling: A Planet Rock aims to show hip-hop and rap fans the connection between the music and the Sierra Leone conflict.

The movie documentary focuses on the vibrant hip hop scene in Sierra Leone and the role the music has played in the country's recovery after its bloody civil war, reports MTV news.

But it also looks at hip-hop's love affair with diamonds and how sales of many of these 'blood diamonds' or 'conflict diamonds' have gone to fund weapons and the military, or have been mined by women and children in dangerous conditions.

The intention of the movie is not to get music fans to boycott bling altogether, just to make sure they get their fix of the shiny stuff from responsible sources, said the film's co-director Raquel Cepeda.

"It's nobody's fault — the rappers, anyone — if they don't know they're wearing conflict diamonds. So we wanted to raise awareness about the whole issue," she said.

"We wanted people to bling responsibly. We want rappers to rap about how it's cool to wear cruelty-free diamonds. And Kanye helped with that."

The movie features an interview with Kanye, although unfortunately he couldn't make it over to the country to see things for himself, due to scheduling conflicts.

But Cepeda does bring Paul Wall, Raekwon and reggaeton rapper Tego Calderon over to Sierra Leone to learn more about the country for the movie, which is currently in production.

Kanye West's Diamonds from Sierra Leone track, released in 2005, started out as a song about record label Roc-A-Fella and its diamond-shaped symbol.

However, when the big hearted rapper heard about the Sierra Leone conflict, he remixed it as a protest song with the help of Jay-Z, making a hard-hitting video to go with it.