Gemstone vs Spicy Meatball

How close are they?

ΔE 6.4, close: similar, with a visible difference side by side. Spicy Meatball is a little lighter than Gemstone.

Can I use Spicy Meatball instead of Gemstone?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Spicy Meatball is a little lighter than Gemstone.

Can I use Gemstone instead of Spicy Meatball?

The same difference applies the other way round: Gemstone is a little darker.

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.