ΔE 9.0, close: similar, with a visible difference side by side. Arctic Gem is more saturated, warmer than Cyan.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Arctic Gem is more saturated, warmer than Cyan.
The same difference applies the other way round: Cyan is more muted, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Cyan on the colour wheel See Arctic Gem on the colour wheel
All matches: Cyan equivalents · Arctic Gem equivalents