Ventimiglia to propose to 'Heroes' co-star

Rex Features

Milo Ventimiglia is reportedly planning to propose to Heroes co-star Hayden Panettiere.

The couple, who hooked up on the set of the US drama, have been dating since the beginning of the year.

A friend told In Touch: "Milo was looking at rings in late June. He really likes Cartier and intends to spend around $200,000."

Panettiere, 18, is to release her debut single next month.