To the average consumer there is no difference between D- Color and E- Color. Gemologists use graded master color diamonds to detect the difference when compared side by side. There may be trace amount of color when compared the master stones.
An excellent cut diamond meets a very high standard of finish. The proportions on these diamonds are exceptionally cut to capture maximum appeal. They are slightly less in pricing but still very valuable.
This diamond contains more inclusions but is mostly eye-clean. These inclusions are easier to observe under 10x magnification. This is a good value diamond because of pricing but in most cases the difference is not noticeable to the naked eye. The inclusions wil be larger than VS2, however they are not noticeable in a face up position.