3 ms·PCBs rarely contain diamonds. For decent scanners with real glass this is not a major problem.by ZiiS 4y agoPCBs rarely contain diamonds. For decent scanners with real glass this is not a major problem.iudqnolq 4y agoPockers rarely contain diamonds. Phone screens are real glass. Yet phone screens get scratched over time.Scalene2 4y agoA lot of it is probably quartz in dirt.