  We study the diffractive jet production in electron-ion collisions in the
kinematical region where the mass $M_X$ of the diffractive final state is
larger than $Q^2$. Based on parton saturation framework predictions are done
for the kinematics of future or possible $eA$ machines as the EIC, LHeC,
HE-LHeC and FCC-eA. We analyze the differential cross section as a function of
jet (gluon) transverse momentum and from the experimental point of view this
observable could be used to extract the saturation scale as a function of
$x_{I\!\!P}$.
