Highschool DxD Rias Gremory Rias is a captivating female who is known for her unique charm and attractiveness. When it comes to her height, Rias Gremory is unquestionably on the higher scale. Her height is impressive, standing high among her peers. Rias Gremory 's stature adds to her aura and dominant demeanor. It accentuates her elegance and grace. Rias Gremory possesses a remarkable physical appearance that sets her apart from others.