In this work, synthesis strategy of Cu2O nanosphere and cube was elucidated and the structural, optical and magnetic properties were studied. Cu2O nanospheres and cubes were synthesized by wet chemical method through selecting the appropriate amount of isopropyl alcohol (IPA) with distilled water as solvent. 5% of IPA yielded cubic shape Cu2O and 30% of IPA yielded spherical Cu2O. The phase purity was confirmed with powder XRD. The FTIR result exhibit Cu (I)-O vibrational band around 628 cm-1 supports the XRD results. In Raman spectra weak band at 508 cm-1 corresponds to Raman allowed mode. The IR active bands at 110 and 150 cm-1 are observed because of the violation of selection rules which demonstrates the defects present in synthesized Cu2O. Raman peaks at 218 and 415 cm-1 are assigned to multiphonon Raman scattering. The UV-Vis diffuse reflectance spectrum was recorded to calculate the band gap value. The band gap value calculated using Kubelka-Munk equation was 2.015 eV and 2.025 eV, respectively, for Cu2O cube and nanosphere.