  The so-called Golden Mass Relation provides a testable correlation between
charged-lepton and down-type quark masses, that arises in certain flavor models
that do not rely on Grand Unification. Such models typically involve broken
family symmetries. In this work, we demonstrate that realistic fermion mass
relations can emerge naturally in modular invariant models, without relying on
ad hoc flavon alignments. We provide a model-independent derivation of a class
of mass relations that are experimentally testable. These relations are
determined by both the Clebsch-Gordan coefficients of the specific finite
modular group and the expansion coefficients of its modular forms, thus
offering potential probes of modular invariant models. As a detailed example,
we present a set of viable mass relations based on the $\Gamma_4\cong S_4$
symmetry, which have calculable deviations from the usual Golden Mass Relation.
