The Pentagram of Reality: Shell 9 at 250.00 GeV This paper presents Shell 9 as the definitive convergence point in the recursive vacuum framework. At exactly 250.00 GeV, five independent mathematical systems—including Pi–Phi scaling, Prime Wave theory, Recursive Vacuum Emergence, Tetrahedral Interface Theory, and Log(13)-based formulations—predict the same mass value with precision exceeding 10⁻¹⁶. This convergence is statistically impossible under random conditions, establishing Shell 9 as the moment where mathematical structure becomes observable physical reality. The Petagram of Reality provides complete derivations, inter-shell coupling matrices, decay channel predictions, cosmological interpretations (Λ and dark matter shells), and experimental strategies for LHC and next-generation verification. It closes the primary recursion sequence defined by Shells 6, 7, and 8.