Diamond Knowledge
Cut
Cut refers to the proportions, polish, and symmetry of a stone: these three factors are important in creating a diamond with…
Color
Colour is the composition of a diamond, which is evaluated based on its degree of colourlessness. Diamonds are graded on …
Clarity
Clarity, or purity, is a diamond’s ability to let in light and reflect its brilliance. Clarity is the easiest for you to evaluate and …
Carat
A carat is the unit of weight by which a gemstone is measured. The carat-weight of a diamond is the easiest measurement of …
Shape
A carat is the unit of weight by which a gemstone is measured. The carat-weight of a diamond is the easiest measurement …
Certification
A carat is the unit of weight by which a gemstone is measured. The carat-weight of a diamond is the easiest measurement …
Grading
A carat is the unit of weight by which a gemstone is measured. The carat-weight of a diamond is the easiest measurement …
Size
Every diamond certified by the GIA undergoes a thorough, independent evaluation. Here you will learn how GIA diamond grades …