A guide to buying your first diamond ‐ the 4Cs
The 4Cs are the definitive, globally recognised standard for grading diamonds according to four criteria. If you are buying a diamond, particularly a solitaire diamond for an engagement ring, it is important to know what they mean and how they affect the value of a diamond.
Before they were introduced in the 1940s by the Gemological Institute of America (GIA), there was no universal method of assessing a diamond’s quality. Today, they are a vital tool for assessing and comparing