front diamond just pulls off as its on 3 little clips, easy job.
back diamond more difficult, you have to upll the plastic off out the inside of the boot door, then unscrew the central locking motor, and then there are 3 bolts holding the badge and handle together in. unscrew these, one of them is awkward.
when you get that off the badge is held in with 4 small clips which are hard to get out if its an oldish clio as the sort of bond to the plastic i found on mine. when putting back together, make sure the button goes back in the way it came, because if you put it in the other way round, one part of it is shorter/longer so it wont go down far enough and wont open the boot again when you shut it. ( i learnt that the hard way haha, poke it back from the inside!) also watch out for locking and unlocking make sure its in sync with the other doors
hope that helps, probably didnt make sense!