I have to repeat Stratocaster83: Is the tiny diamond chip still on the stylus? Not the shank which often is clear, hard plastic...the tiny tip. You usually can not tell with the naked eye, sometimes not even with a handheld magnifier, it can be THAT small. If it has come unglued, all the futzing you can do won't fix the problem.
+1. We tend to see the base at the tip of the cantilever and mistake the same as the diamond tip.
Regards,