I just upgraded my center stone to this one and had the head replaced. The jeweler I used set it crooked at first and then after they fixed it the prongs looked like they need to rhodium them again. So I had to bring my ring back to them again, this time they had to take the stone out and polish the prongs, then reset it. Since then, I've noticed that lint is getting stuck at times under the prongs. Should I be concerned? I will have a local jeweler look at it to make sure it is secure, as I have to have it re-appraised for insurance. Thoughts? Would my ring look better with a tulip prong head? Or do these prongs look right for the setting?