My diamond felt loose in my engagement ring, so I got it repaired. A couple of months later it felt loose again! it felt as if it was sliding back and forth in the setting. Thinking that the first jeweler did the job incorrectly, I took it to another jeweler in town. They fixed it again. A couple months later it felt loose again! We had since moved, so I took it to a 3rd jeweler! It felt loose again after a couple of months. I have not been wearing it for fear that I should loose the the diamond. I took it out of the drawer a couple of days ago and it no longer felt loose. what is going on!? It has been repaired for the same thing 3 times!!!! Why won''t it stay fixed?! or why does it feel fixed at sometimes and not others? Could change in temp effect how secure the setting is? It is in a platinum setting and has an unusaul setting, where the platinum comes up over the sides of the diamond.