I looked into this in the past with CS in mind.
I don't think I have uploaded an inspiration pic onto PS and do not have one on my phone.
However the design I have in mind has halo fixed to a plain wide shank, for the interchangeable centre bezel set CSs about 9mm each to be screwed into the centre.
I have not worked how to take the centre stone out, however it would probably involve a tiny suction cup or using Blue Tack.
The original inspection design has each CS bezel set in a halo, for each halo/CS combination to be interchangeable and screwed onto a thick wide plain shank.
I did not like that idea, as I would worry about the halo/CS combo being detached from the shank.
Some form of fixing mechanism would be needed, like a tiny nut on the underside.
However, having a separate halo/CS combination made is costly (I was planning on 3, all inexpensive stones from Jeff D).
The project stalled as I decided to spend money on setting my nicer stones instead.
DK
