I find it difficult to wear rings on a good day, I swell up. On a plane, forget about it! I have a few nice Brighton pieces that are fun, and can dress up or down; but aren't so expensive that I'd cringe if they were lost. I also have some nice CZ pieces that look quite expensive; but wouldn't be impossible to replace, if lost or stolen.

I'll, like others here, situationally take nice jewelry with me, depending on where, when, and how I'm with. One item I [B]always[B] have with me are nice scarves. They make me feel good, colorful, and are a practical way to dress up a casual or a nice outfit!