Diamond Cut Grades Gia

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.

Diamond cut grades gia.

Like gia the lumera cut grade is based on a variety of factors and is conservatively applied. 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. 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. Diamond cut quality and why it s important.

In this blog we cover. A description of its shape and cutting style. 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. Cut is the most complex of a diamond s 4cs.

The gia cut grading system introduced in 2005 and validated by thousands of observations by retailers manufacturers and the public who looked at real diamonds and described why they thought certain diamonds were the best looking can help you understand what to look for in a well cut diamond. For standard round brilliant cut diamonds falling in the d to z color range the report also includes a. A gia diamond cut grade is key to knowing how well your round brilliant diamond will sparkle. Let s cover some essentials so you can pick the perfect round brilliant diamond engagement ring.

And a simplified proportion.