Gia Diamond Cut Grades

A description of its shape and cutting style.

Gia diamond cut grades.

Gia cut grade estimation tables for standard round brilliant cut diamond explains how to locate a particular proportion combination and determine whether it is close to a boundary in the cut grading system. 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. But reports do contain an assessment of the diamond s polish and symmetry. It also discusses how to use facetware online to obtain a more accurate estimate of a cut grade.

Non standard round brilliant cut diamonds. Let s cover some essentials so you can pick the perfect round brilliant diamond engagement ring. Gia created the 4cs color clarity cut and carat weight as a universal method for establishing the quality of any diamond anywhere in the world. The 4cs means two very important things.

Cut is the most complex of a diamond s 4cs. 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 gia diamond cut grade is key to knowing how well your round brilliant diamond will sparkle. And a simplified proportion.

Like gia the lumera cut grade is based on a variety of factors and is conservatively applied. Diamond quality can be communicated in a universal language and diamond buying consumers can know exactly what they are about to purchase. 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. Full color 8 page booklet.