Bar Refaeli - Diamonds are Girls Best Friend Cannes

Model Bar Refaeli attends the Chopard 'Happy Diamonds Are A Girl's Best Friend' Party during the 64th Annual Cannes Film Festival at the Martinez Hotel on May 16, 2011 in Cannes, France.

Leonardo DiCaprio & Bar Refaeli Split

It's the end of the road, once again, for Leonardo DiCaprio and Bar Refaelii.

The Hollywood superstar, 36, and the Israeli supermodel, 25, who had been together for five years – minus a six-month break halfway through – have called it quits, a source confirms to PEOPLE.

The pair began dating in the spring of 2006, and tried to keep their romance low profile despite their stardom.

Bar Refaeli - GQ Magazine June 2011 Photoshoot

Recently single supermodel Bar Refaeli graces the cover of GQ Magazine June 2011.

Download: Bar Refaeli GQ Magazine June 2011 Photoshoot

Bar Refaeli – Passionata Summer 2011 Photoshoot

Supermodel Bar Refaeli posing for her Passionata Summer 2011 Photoshoot.