Gia Diamond Grading Chart Pdf

Here you will learn how gia diamond grades are established and how those grades affect the diamond s price.

Gia diamond grading chart pdf. Gia diamond grading report. 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. 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. Gia issues the diamond grading report for loose natural diamonds only weighing 0 15 carats or more.

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. With report check you can quickly and conveniently confirm that the information on your report matches what is archived in the gia report database. Gia diamond grading scales. For standard round brilliant cut diamonds falling in the d to z color range.

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. 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. Full color 8 page booklet.

A nonprofit educational resource for the gem and jewelry industry. 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. 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. Many inclusions and blemishes are too tiny to be seen by anyone other than a trained diamond grader.

Each of the four c s carat weight cut color clarity is accompanied by a diamond chart illustrating the differences between grades. Locations in los angeles and carlsbad california as well as new york city. Gia reports represent the highest standard of reliability consistency and integrity. Every diamond certified by the gia undergoes a thorough independent evaluation.

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. Gia developed the definitive diamond color scale or.