For those of you that have issues with your ring twisting around because your ring is loose on your finger (i.e., your knuckles are bigger than your finger, so you can't just re-size the entire ring): I just had those little platinum sizer balls stuck inside my ring, at approximately the 5 o'clock and 7 o'clock location on my ring, and they work SO. WELL. My ring isn't twisting around nearly as much and the stone is sticking on top of my finger, in the middle! I wish I would have done this sooner because it has bothered me for like 11 months.
Just wanted to let you know it's awesome.