Diamond Cut Grades Gia

For standard round brilliant cut diamonds falling in the d to z color range the report also includes a.

Diamond cut grades gia.

Diamond cut quality and why it s important. And a simplified proportion. In this blog we cover. The gia diamond cut scale for standard round brilliant diamonds in the d to z diamond color range contains 5 grades ranging from excellent to poor and is the definitive scale for classifying diamond cuts.

The gia diamond grading report includes an assessment of a diamond s 4cs color clarity cut and carat weight along with a plotted diagram of its clarity characteristics and a graphic representation of the diamond s proportions. A description of its shape and cutting style. Like gia the lumera cut grade is based on a variety of factors and is conservatively applied. A gia diamond cut grade is key to knowing how well your round brilliant diamond will sparkle.

For diamonds without a gia cut grade because the diamond was certified before gia began assigning cut grades in 2005 or is a shape that gia does not currently assign cut grades to lumera will apply its own cut grade according to a proprietary formula. Cut is the most complex of a diamond s 4cs. At this time an overall cut grade for non standard round brilliant diamonds or fancy shaped diamonds such as rectangular oval or square is not available on gia grading reports. But reports do contain an assessment of the diamond s polish and symmetry.

What goes into a gia diamond cut grade.