Absolute magnitude vs. colour diagram for GES iDR5 stars using Gaia DR2 parallaxes and photometry without (left) and with (right) correction for extinction and reddening taken from Andrae et al. (2018). We included all sources irrespective of their parallax and flux uncertainties. Almost 40% of the stars in the left diagram have a Gaia DR2 extinction and colour excess values. The white line marks the separation between dwarfs and giants using Eq. (14). The white arrow in the left panel represents the reddening vector.