Gia Diamond Scale

Almost every diamond sold today is rated using the gia color scale whether it was actually certified by the gia or not.

Gia diamond scale.

Gia diamond grading report. Diamonds of d k and z gia color grade the gia grades diamonds on a scale of d colorless through z light color. The diamond industry has adopted the gia diamond color scale. This short video explains the gia color scale and how gia classifies a diamond with a letter grade from d to z by comparing it to masterstones representing the color grades on the gia scale.

Gia developed the definitive diamond color scale or chart in the early 1950s a time when there were a lot of different and subjective terms in the marketplace for describing a diamond s color. The gia diamond dossier is a more concise compact version of the gia diamond grading report and is available for diamonds that weigh between 0 15 and 1 99 carats. Another mineral graphite also contains only carbon but its formation process and crystal structure are very different. The 4cs means two very important things.

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. Today the 4cs of diamond quality is the universal method for assessing the quality of any diamond anywhere in the world. Many inclusions and blemishes are too tiny to be seen by anyone other than a trained diamond grader. Color clarity cut and carat weight.

This report includes all the important 4cs grading results as the diamond grading report but does not include the plotted diagram. 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. Diamond s carbon atoms are bonded in essentially the same way in all directions. All d z diamonds are considered white even.

White blue white aaaa for example. Diamond forms under high temperature and pressure conditions that exist only about 100 miles beneath the earth s surface. For standard round brilliant cut diamonds falling in the d to z color range. Gia created the first and now globally accepted standard for describing diamonds.