I am looking at round engagement diamonds. It will be about 2.75 to 3.05 carats. I am having trouble deciding on the color. The difference between a H and I is about 10K. I have not seen the diamonds personally and I guess this is probably the best thing to do. I am not confident in my own color grading ability and was looking for comments on the appearance to the average eye of these grades. I am not worried about the investment aspect and am just looking for the largest size for the money while retaing the best look. Any guidance is appreciated. Thanks.