ΔE 7.8, close: similar, with a visible difference side by side. Rosy Highlight is a little lighter, more muted than Tourmaline Skin.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Rosy Highlight is a little lighter, more muted than Tourmaline Skin.
The same difference applies the other way round: Tourmaline Skin is a little darker, more saturated.
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 Tourmaline Skin on the colour wheel See Rosy Highlight on the colour wheel
All matches: Tourmaline Skin equivalents · Rosy Highlight equivalents