What is diamond grading?

Diamond grading is the process of evaluating the quality and characteristics of a diamond based on specific criteria, often referred to as the 4Cs: Carat weight, Cut, Color, and Clarity. Professional diamond graders use standardized tools and methods to assess these attributes and assign grades that help determine a diamond's value and authenticity. These grades are typically documented on a diamond grading report or certificate, which is essential for buyers, sellers, and appraisers. Accredited organizations like the Gemological Institute of America (GIA) set the industry standards for diamond grading.