Colossal statue of a goddess (Diana?)

Inv. Scu 61

The colossal statue represents a goddess stepping forward. Its exact identification is still matter of debate, since there is no parallel for this specific iconographic type. The absence of bow and arrows and the pose appear to suggest that the statue represents Artemis/ Diana as torch bearer, which we can imagine she held in each hand.
The left leg is moved forward in a broad step, the right one is pulled back. She wears a long peplos with a slit that shows her right leg, with a high belt under her breast. Her left hand is raised to hold an object, the right one is lowered along her side.
The folds of the dress fall linearly and are not interested by the forward movement of the goddess. Only the kolpos, apoptygma expands, blown by the wind and diverging from the body.
The hairstyle is soft and full, the curly locks are tied and fall behind the nape, a knot decorated by a crescent is visible on the top of the head. Her face is expressionless, with her gaze upwards towards her left arm.
The head does not belong to the statue, but was probably added in a post-ancient intervention.
The style and the rendering of the drapery date the sculpture to the 1st century AD.
The work was probably found in Rome.