The cut of a diamond should not be confused with shape. The cut of the diamond is the only aspect of the 4C's that man can control. When grading body color, the diamond is compared to a master set of diamonds. An electronic colorimeter or spectrophotometer can also determine the color. Seng Jewelers is privileged to have in our accredited gem laboratory an SAS 2000 spectrophotometer analysis system, which determines the body color of a diamond.
Clarity indicates the degree to which inclusions are present in the diamond.
These inclusions are small markings that occur in nature. A diamond that is said to be flawless does not have any inclusions visible under 10-power magnification. The carat weight of the diamond may very well be the least important aspect in determining value. The AGS suggests that one look at comparing the value of stones by weight as analogous with comparing the value of paintings by size. In other words, a wall sized portrait by an unskilled artist may weigh more than a miniature by Rembrandt, but it certainly would not be worth more.