You need a drill press to do it right. Hand work only looks good for very small jobs ( like jewelery and watch cases). Chock a piece of maple dowel in the drill press. Spread a thin coat of fine valve grinding compound across the blade surface to be jeweled. Lower the spinning dowel and apply pressure for a few seconds, lift and move the blade ( it should be in a X-Y vise,BTW) so the next jewel will just slightly overlap the last one. Continue across one row before moving to the next. Practice on a piece of similar hardened steel to get the procedure down.
Stacy