For any of you who remember my previous posts and were so kind as to comment and give advice, I just wanted to post the conclusion of my story. Tomorrow I will be giving back my ring and having the center stone swapped out for the G, Ex, VS1, 1.70 ct RB that we looked at two weeks ago, at the same price we were quoted two weeks ago (although the jeweler said in the last two weeks prices have gone up, interestingly). I am relieved, happy, excited, and anxious! I can't wait to have my new stone and to be able to hold it up to my face in all lights and at all angles and not see my little black speck inclusion (which I have named Salvatore, lol). Thanks again to everyone!