Advise for setting stones in earrings (my first attempt)

[Simmo]

Hi, I make 9ct rings as a hobbie but going to have a go at making some earrings for my girlfriend.
I’ve watched a few vids on YouTube and just need some advise on what size tools I need for setting.

So they’re 3.8mm diamonds brilliant cut.
Was looking at setting them in these claw earrings
Item number: NBJ 846 (on cooksongold)
Just wondered...
What size cup burr would I need to take the prongs down for finishing?
And what would be the best burr/size tool for cutting the seating.

Many thanks
Andy