Results of differential photometry from the RINGO3 polarimetric data. The cusps on the rise out of the nova’s dust-dip areclearly visible in the plot. The first cusp corresponds to the grain destruction seen in the Dipol-2 data days 111–114 post-discovery. The rise on the third cusp feature visible in the plot is from the grain growth period suggested by the Dipol-2 observations, these observations lie between the dashed lines on the plot. The lines are colour-matched with the RINGO3 bands, blue is blue, red is red and green is black.