Wall tile jagged edge how to cover

[morphboy]

I am using ceramic wall tiles 20 by 25cm, 7mm thick in my bathroom.
I will have cut ie jagged edge of the tiles at the window sides and top, I have seen homelux 9mm pvc trim at B&Q which is curved and you would be able to hide the cut edge by sliding it under is that the correct way to use it or is there any other way to hide the jagged edge ?

 

[White Room]

Trouble with ceramics hardly any edges are glazed now, I tend to keep them flush with the trim but leave a gap for grouting, some butt up against the trim

 

[doug boardley]

use a rubbing stone to smooth the jagged edges before fixing them