Four thieves swiped over a million dollars worth of jewelry from a Bronx shop, police sources said Wednesday.

The quartet broke in through a wall of Gold Mine Jewelry on East Fordham Road near Walton Avenue in Fordham Heights just before 3 a.m. Tuesday, according to police.

The owner arrived at the store around 11 a.m. the same day and discovered what he said was an estimated $1.3 million worth of jewelry missing from display cases and a safe, according to sources.

The suspects remain on the loose.