Diamond Cut Rating

For standard round brilliant cut diamonds falling in the d to z color range the report also includes a.

Diamond cut rating.

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. 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. Every diamond certified by the gia undergoes a thorough independent evaluation. Classification of diamond color on a d colorless z tinted scale.

Fire results when white light traveling through the diamond is dispersed into its rainbow of spectral colors. Each of the four c s carat weight cut color clarity is accompanied by a diamond chart illustrating the differences between grades. Cut grades however aren t universal. When writing the grades of a diamond using the ags scale diamond cut grade is first then diamond color clarity then carat weight in that order.

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. The cut of a diamond greatly affects a diamond s brilliance. If a diamond possessing the finest diamond cut grade is also colorless free of inclusions and blemishes and weighs one carat it would be written as. Look for red blue yellow or orange flashes as you.

Gia only rates round diamonds with the highest possible grade being excellent. Which grade diamond cut is the best. This means if it is cut poorly it will be less luminous. Well cut diamonds are brighter than poorly fashioned ones even if they re of equivalent size color and clarity.

Inclusions are solids liquids or gases that were trapped in a mineral as it formed. Here you will learn how gia diamond grades are established and how those grades affect the diamond s price. In general the brighter a diamond is the higher its grade will be. Diamond clarity is the quality of diamonds that relates to the existence and visual appearance of internal characteristics of a diamond called inclusions and surface defects called blemishes clarity is one of the four cs of diamond grading the others being carat color and cut.

A well cut diamond has better light return which results in better sparkle and brilliance. The gia diamond cut scale for standard round brilliant diamonds in the d to z diamond color range contains 5 grades ranging from excellent to poor and is the definitive scale for classifying diamond cuts. How does pavilion depth affect a diamond s cut. Diamond quality charts and rating scales illustrated.

Of the 4cs cut is the biggest factor in determining a diamond s sparkle and beauty.