I am about to buy a ring for my girl. I got the diamond picked but I have to guess her ring/finger size! She does not currently live with me and I do not want to ask her since my proposal will be a surprise. What do people in my situation usually do? Can you guys venture a guess on her ring size? She is 5''4'''' 110-115 lbs. I have been told that it is always safer to overestimate the finger size a little bit because it is possible to tighten the ring later on. My second question is whether or not I can get a diamond appraised after it is set. I am buying a ring from dirtcheapdiamonds.com and will have it set on a platinum band before I can get it appraised. Thank you for the information. You guys are always a great help.