Gia Diamond Grading Chart Pdf

In this post you can learn about and download the official gia color scale work with an interactive diamond color chart to see the relationship between grades and colors and watch a useful gia diamond color grading video to see how gia evaluates diamond color.

Gia diamond grading chart pdf.

The chart is intended to provide information to help members of the jewelry trade better understand the attributes of diamond appearance and how these are evaluated within the gia cut. Gia reports represent the highest standard of reliability consistency and integrity. 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 standard round brilliant cut diamonds falling in the d to z color range.

Each of the four c s carat weight cut color clarity is accompanied by a diamond chart illustrating the differences between grades. The gia diamond grading report includes an assessment of the 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 nonprofit educational resource for the gem and jewelry industry. Here you will learn how gia diamond grades are established and how those grades affect the diamond s price.

Gia diamond grading scales. Many inclusions and blemishes are too tiny to be seen by anyone other than a trained diamond grader. Gia issues the diamond grading report for loose natural diamonds only weighing 0 15 carats or more. And now gia report check is available for all gia reports providing you with an additional level of assurance.

Offering online and on campus education diamond grading and identification services and scientific instruments. This chart summarizes the main concepts of the gia cut grading system for round brilliant diamonds that was introduced by the gia laboratory in january 2006. Full color 8 page booklet. Official gia color scale.

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. This short video explains the gia clarity scale and how gia classifies diamonds with a clarity grade ranging from flawless to i 3 by using a 10x magnification loupe and a microscope to see and plot the diamond s inclusions. Gia developed the definitive diamond color scale or. Gia diamond grading report.

With report check you can quickly and conveniently confirm that the information on your report matches what is archived in the gia report database. Every diamond certified by the gia undergoes a thorough independent evaluation.