The gold holds up pretty well with etching. I've done it to a lot of beads. If you leave it in the solution for too long, though it WILL start to eat through the solution.
If you do a standard 2 to 4 minute dip, you should have no problems. Just don't leave it in for 15 min like I did once. It ate up most of the gold and turned the rest of it this disgusting mud color.
p.s. - Emily - I love your tagline! it makes me smile every time I read it