Can I ask why you use clearly pink?When you say pure glitter nails do you just mean a nail covered with glitter?
With shellac do your
prep as normal,
2 colour coats cured (some people only use one layer of colour)
Then use a dry brush to dip it in your glitter and pat it into the sticky layer of the cured shellac
I then seal it in with a layer of clearly pink (not over white as it will change the colour)
Top coat as normal x