An Ideal type of cut proportions of a polished diamonds depth is not too shallow nor too deep, and the facets are uniform so as it exhibits a very nice brialliance and fire.
Not excellent but close to an Ideal or excellent cut diamond, diamonds are brilliant on this cut grade. Some measurements such as angles may still be considered as excellent.
This is the average cut grade of a diamond. If you are in a strict budget then the good cut grade is for you.
A Fair cut is a decent cut grade with a budget price but not for the meticulous.
A Poor cut diamond will greatly affect the brilliance of diamond since it will only reflect a small percentage of light going into the diamonds facets. Earrings Forever do not recommend this grade cut.