Two-phase LaLuZr2O7 transparent ceramic was fabricated via vacuum sintering using powders obtained by a simple sol-gel combustion method. These two phases are pyrochlore and defective fluorite phase with different chemical components. The in-line transmittance of LaLuZr2O7 transparent ceramic is 73.4% at 1100 nm, showing an excellent optical performance. LaLuZr2O7 transparent ceramic is a promising candidate for scintillator host due to its high density (6.82 g/cm(3)).