The gilt-head bream has a deep body, with a large, deep head which has its relatively small eyes placed high on the head. The diameter of the eyes is shorter than the length of the snout. The cheeks are deep and covered in scales but the
preoperculum has no scales, although the
operculum is scaled. It has a long-based
dorsal fin which is supported by 11 robust spines and 13 or 14 branched soft rays. The
anal fin is short based and is held up by three spines and 11 or 12 branched soft rays. It has large and robust teeth in the jaws with four to six large, pointed canine-like teeth in the front the jaws with 2 to 4 rows of blunt, round teeth laterally. It has a blue-grey back, the sides are silvery with a large dark spot behind the eye, it is red along the margin of the operculum and there is a golden bar on the head between the eyes. This species has a maximum
total length of , although a standard length of is more typical, and a maximum published weight of . ==Biology==