The overall diameter of the lens: It's irrelevant to the size of the pupil and it refers to the total size of the lens.
The size marked on the label of the lens is the whole diameter
(The size marked on the label of the lens refers to the entire size to the transparent area and it is
irrelevant with the size of the pupil)
Graphic diameter: It decides the size of the pupil when you wear the lens.
(Your pupils look bigger if the graphic diameter is bigger!!)