We combined proprietary and archival HST observations to collect a sample of ETGs at 1 < z < 2, all of them with spectroscopic confirmation of their spectral type. The whole sample is covered by NICMOS observations in the F160W filter sampling the rest-frame R-band at the redshift of the galaxies and by multiwavelength (optical and near-IR) observations. We derived morphological (effective radius and surface brightness) and physical (luminosity and stellar mass) parameters and we studied the main scaling relations of these ETGs at z~1.5. In this talk I will present the results of this analysis.