Diamond Ring Rating Scale

Arcane systems used grades of a c 1 3 and i iii etc.

Diamond ring rating scale.

Classification of diamond color on a d colorless z tinted scale. Diamond quality charts and rating scales illustrated. Here you will learn how gia diamond grades are established and how those grades affect the diamond s price. The gia laboratory issues diamond grading reports for loose natural diamonds in the d to z color range that weigh 0 15 carats or more.

Find an ags jeweler or learn more about diamonds. Many inclusions and blemishes are too tiny to be seen by anyone other than a trained diamond grader. The gemological institute of america gia color scale is the industry standard for diamond grading. 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.

Gia diamond grading reports are not issued for laboratory grown diamonds diamond simulants mounted diamonds or those that have undergone unstable treatments such as fracture filling or coating. A well cut diamond has better light return which results in better sparkle and brilliance. Color scale clarity scale. Many people ask why the gia diamond grading scale starts at d.

The gia diamond color grades range from d colorless to z light yellow or brown. Every diamond certified by the gia undergoes a thorough independent evaluation.