The easiest method is to use your ‘Separating Disk’. Grind a slot
from the upper tip of the bezel & let that wheel cut a groove down to
the base of the bezel. You ‘must’ cut right through! When done, simply
use a pair of very sharp pliers & widen that thin groove to slowly
remove the diamond. Don’t force’ your actions, widen the opening from
the bezel tip, to the base. This will dislodge the stone in little
Hope this works for you, as it does for me!