Reply To: Best beginner laps › Forums › Laps › Best beginner laps › Reply To: Best beginner laps October 28, 2017 at 12:25 am #3594 Owen McDevittParticipant @owenmcdevitt the laps I started with are 260-360-600-3000—matrix for polishing and batt with 3000 diamond and another matrix for 50,000 diamond have cut over 2000 gems of all nature polishin grit I use italdo brand diamond— serium oxide and linde a