Seriously, you don't want to hide it, and I would probably just act like it's about the same as a HS diploma.
For some peple, it is. I have some good friends who were home schooled in very rural Colorado. They are some of the smartest folks I know. When I heard that they had GED's I though to myself "but only total losers have those." Wrong, if you don't go to high school, it's the only real way to prove that you have the equivalent of a high school education. Otherwise, you'd leave it up to Mom and Dad Homeschool to declare their kids as having a ghigh school level education...
I don't know what you mean by "well accredited," but you'll probably be more than fine if it's from an actual school (some of the online degree ones might give you trouble). You may have dropped out of high school, but the fact is, you went back, got your GED, and then went on to a 4 year degree. There's nothing to be ashamed of there. Good luck this week.
Dan
PS-Typing has made me wonder? What would pilotyip say about a pilot not having a high school diploma? After all, we're pilots, and flying an airplane involves math no more complicated than I learned in the 5th or 6th grade. So in short, get that job flying the airplanes, skip the HS diploma, you'll be far better off in the future.