I told this gal that quartz was not an easy stone to deal with, that re-drilling required patience, skill, and a lot of lubricant - a bead reamer was not a good option.

She replied that she hadn't had any response from contacting local rock clubs. Judging from what what you've relayed, she was in luck, LOL!

She decided to just live with the bead being as clean as she's been able to get it, and to quit obsessing about it.