Diamond Cut Grade Scale

How light affects a diamond s appearance.

Diamond cut grade scale.

Every diamond certified by the gia undergoes a thorough independent evaluation. 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. The official gia diamond clarity scale. 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.

Here you will learn how gia diamond grades are established and how those grades affect the diamond s price. Represents roughly the top 35. Each of the four c s carat weight cut color clarity is accompanied by a diamond chart illustrating the differences between grades. Uncategorized may 27 2015.

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

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. Many inclusions and blemishes are too tiny to be seen by anyone other than a trained diamond grader. Uncategorized november 09 2015.