Diamond Colour
Diamonds range in colour from colourless to light yellow to light brown. Colourless diamonds are the rarest and the most valuable.
The Gemological Institute of America (GIA) has created a 12 letter alphabetical scale that is the industry standard for grading the colour of diamonds. Each letter represents a range of colour based on a diamonds tone and saturation. Every diamond is graded under controlled conditions – this is the comparison of a stone to a round brilliant diamond of known colour. These stones are called master stones.
This 12 letter alphabetical scale ranges from D- colourless to Z- light coloration. It is possible for a diamond to emit a colour more intense that a Z rating, these diamonds are called “Fancy Colour” diamonds. The value of an intensely colored stone can jump dramatically, even surpassing the value of a flawless diamond.
The colour of the diamond refers to how colourless the diamond is – perfectly white, colourless diamonds are extremely rare.
a diamonds colour is determined by the Gemological Institute of America’s colour sale. This scale ranges from D (colourless) to Z (yellow).
