We use the underlying hexagonal structure of graphene to identify uniquely the position pertaining to a divacancy defect of type V₂(555 - 777). This is achieved by considering at most three closed path readings and the symmetry of the defective structure. We work in the corresponding rectangular model but still rely on the rotational symmetry of the original hexagonal grid. Our approach is purely mathematical and therefore there is no need for imaging technologies © 2023 University of Kashan Press. All rights reserved