Diamond Cut Grade Scale

Every diamond certified by the gia undergoes a thorough independent evaluation.

Diamond cut grade scale.

Gia diamond grading reports. How light affects a diamond s appearance. 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. Understanding diamond grading and cut grades.

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 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. Astor by blue nile poor fair cut.

Conversely a well cut diamond can have a slightly lower color g h or clarity si1 si2 and still look quite beautiful due to its superior ability to create sparkle and. Uncategorized may 27 2015. Uncategorized november 09 2015. Grading scale use the slider to see cut grade details or view the cut grade chart below.

Diamond clarity the diamond 4cs august 13 2015. 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.