Diamond Cut
Out of all the factors with a diamond, cut is the most important. The cut of a diamond refers to its proportions. Diamonds are usually cut with 58 facets, or separate flat surfaces. These facets are placed at precise angles to each other to maximise the amount of light reflected through the diamond, producing the sparkle and beauty that can be seen. If the cut of a diamond is too shallow the light escapes through the pavilion before it can be reflected and if the cut is too deep the light escapes through the opposite side of the pavilion. With these types of diamonds you get no sparkle or fire.