I have a platinum, 4-prong, tulipset radiant diamond. In most lighting conditions, some prongs appear uneven (i.e. one or two seem to jut-out farther from the diamond than the others). However, in low light conditions, all appears A-OK. Without being able to see a picture (I do not have capabilities to post a pic), is this a common optical illusion? Also, is it very difficult with this type of setting to have even prongs? Thank you so much for any input you may have to offer!!