Gia Diamond Grading Chart Pdf

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

Gia diamond grading chart pdf.

Locations in los angeles and carlsbad california as well as new york city. Each of the four c s carat weight cut color clarity is accompanied by a diamond chart illustrating the differences between grades. Official gia color scale. The universal measure of quality march 14 2013 the prospect of purchasing a diamond may seem daunting but through gia an unbiased authority on diamonds you have several handy resources to help you select the highest quality diamond.

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 report. 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 reports represent the highest standard of reliability consistency and integrity.

A nonprofit educational resource for the gem and jewelry industry. And now gia report check is available for all gia reports providing you with an additional level of assurance. Gia diamond grading scales. 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 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. Here you will learn how gia diamond grades are established and how those grades affect the diamond s price. 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. 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.

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. For standard round brilliant cut diamonds falling in the d to z color range. Every diamond certified by the gia undergoes a thorough independent evaluation. It also discusses how to use facetware online to obtain a more accurate estimate of a cut grade.

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. Gia developed the definitive diamond color scale or.