Diamond Cut Grade Scale

Understanding diamond grading and cut grades.

Diamond cut grade scale.

Each of the four c s carat weight cut color clarity is accompanied by a diamond chart illustrating the differences between grades. 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. Diamond clarity the diamond 4cs august 13 2015.

Gia diamond grading reports. The official gia diamond clarity scale. Astor by blue nile poor fair cut. Grading scale use the slider to see cut grade details or view the cut grade chart below.

Cut grade is the most important factor in determining the overall appearance of a diamond because a poorly cut diamond will seem dull even with excellent clarity and color. How light affects a diamond s appearance. Uncategorized may 27 2015. This short video explains the gia cut scale and how gia classifies round brilliant cut diamonds with a cut grade ranging from excellent to poor by factoring in a range of parameters including the diamond s proportions culet size girdle thickness polish and symmetry descriptions.

Represents roughly the top 35. Here you will learn how gia diamond grades are established and how those grades affect the diamond s price. Diamonds with low cut grades often appear glassy or dull or just plain small and they don t live up to our standards of great quality at a great value.