In this work, we derive a stress–energy coupling constant for gravitational charge by treating mass as an elementary, quantized source analogous to electric charge, under the assumption of uniformity of physical laws throughout the universe. Restricting attention to the weak-field, static regime, we employ the Newtonian limit of General Relativity to relate the Poisson equation, the gravitational force, and the Einstein field equations. This approach yields a coupling constant that coincides with the standard Einstein gravitational coupling, despite being derived from an alternative charge-based perspective. Using an action formulation, we construct a corresponding gravitational stress–energy tensor and verify its covariant conservation for both Schwarzschild and Kerr spacetimes. These results demonstrate that a charge-based interpretation of gravity remains consistent with established solutions of General Relativity within the stated approximations.