i found the hairdryer completely useless when trying to get my jewel off. the trick for me was sticking the xbox cover in the freezer (just the cover not the whole xbox) and then hitting right behind the jewel with a small hammer. it poped off instantly. i then used pretty much a small screwdrive to scrap all the glue off of it. to make the jewel transparent i sanded the back with high grade sand paper and then when i had a clear scratched jewel i used brasso to polish and remove the scractches, and now my jewel looks great. hope that helps.