I bought a diamond last week and have a slight twinge of buyer's remorse. I researched diamonds because my fiance was too busy to do it and I would be making the ultimate decision. The thing is, I learned so much on this website about things like brilliancescope images,images, HCA scores, pavilion angle and crown angle. I thought that I knew exactly what I wanted on paper. However, when I started physically looking at diamonds, that info. seemed to move to the back of my mind. I ended up buying a round 1.6 ct. diamond, VS2, D, VG polish/VG symmetry without any sarin data (it's a GIA stone and although I got the stone appraised, the appraiser didn't have a sarin machine) simply because it looked nice to the naked eye and was a good deal. The only thing that came close was a round 1.52 ct. diamond, VS2, F, Ex polish/Ex symmetry with slightly more brilliance if you looked hard enough for a couple of minutes. Both have ideal table and depth percentages. Under the loupe, the first stone was definitely cleaner. The stones were also only $600 apart in price. Other Ex polish/Ex symmetry stones that I looked were not quite as brilliant. In short, I'm beginning to wonder if I should've looked harder and gotten all the technical info. before I bought the think. In the end, I just went with my instincts and my eyes. I'm beginning to worry that I've made a mistake. The stone is no longer refundable, but I think I could get an exchange. Any thoughts????