We perform ice cloud simulations and retrievals for various combinations of ice water path (IWP) and effective diameter (Deff). A radiative transfer model known as ARTS (Atmospheric Radiative Transfer Model) is used to incorporate the scattering/absorption/polarization properties of ice particles to explore ice cloud characteristics. The Moderate Resolution Imaging Spectroradiometer (MODIS) Collection 6 (roughened 8-column aggregates) is the primary ice particle model of choice. As a separate case, a Two-Habit Model (THM) comprising of single hexagonal columns and 8-column aggregates is another ice cloud model chosen to comprise the simulated ice clouds as a way to assess the impact of using different ice particle models on retrievals. This study demonstrates that polarized sub-mm/mm and IR (Polarization Difference – PD), sub-mm/mm brightness temperature depression (ΔTb), and IR split-window measurements (BTD) have the potential to effectively retrieve both IWP and Deff.