Gia Diamond Ratings

Diamond 4cs and gemstone information.

Gia diamond ratings.

Diamond quality can be communicated in a universal language and diamond buying consumers can know exactly what they are about to purchase. The world s foremost authority in gemology established in 1931 gia protects the public through gemological research education impartial gem identification and grading services and instrument development. Gia diamond grading report. All d z diamonds are considered white even.

The 4cs means two very important things. These reports are issued by the gemological institute of america gia which is among the most respected organizations in the diamond industry. 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 differences in diamonds can be so subtle even a trained jeweler can t recognize them without lab verification.

Full 4cs assessment with a plotted clarity diagram geographic origin and gia report number laser inscription. A diamond grading report from an unbiased scientific source such as gia is more than important information it s proof of what you are buying. Gia s d to z diamond color grading system measures the degree of colorlessness by comparing a stone under controlled lighting and precise viewing conditions to masterstones of established color value. This report includes all the important 4cs grading results as the diamond grading report but does not include the plotted diagram.

Insist that any diamond you buy come with an indisputable verification of its quality. For loose natural d to z color diamonds only weighing 0 15 carats or more that were submitted for rough analysis. Diamonds of d k and z gia color grade the gia grades diamonds on a scale of d colorless through z light color. However these distinctions make a very.

For standard round brilliant cut diamonds falling in the d to z color range. 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. The diamond industry has adopted the gia diamond color scale. Many inclusions and blemishes are too tiny to be seen by anyone other than a trained diamond grader.

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