Ultrafine rare-earth iron garnets (RIG) in the crystallite size range 1.0-35 nm, prepared by the citrate precursor method have been investigated by Mossbauer spectroscopy at room temperature. The crystallites of 10-35 nm size show two six-line spectra corresponding to tetrahedral and octahedral Fe3+ with isomer shifts, delta, and magnetic hyperfine fields, H(hf), comparable to the bulk polycrystalline garnets. However, 1.0-1.5 nm crystallites (X-ray amorphous) show a quadrupole split doublet due to superparamagnetic nature with isomer shifts (0.3 mm s-1) intermediate between tetrahedral and octahedral values of bulk garnets. The relative increase in the tetrahedral delta and the decrease in the octahedral delta indicate, respectively, an increase of tetrahedral Fe-O bond distance and a decrease of octahedral Fe-O bond distance in the ultrafine state, in complete agreement with the observations made earlier in the spectrochemical investigations. The lines are broad (linewidth = 0.65 mm s-1) and the quadrupole splittings are relatively larger (DELTAE(Q) = 1.0 mm s-1) indicating large deviation from cubic symmetry at the Fe3+ sites.