Diamond Colour

While most diamonds appear not to have any colour at all, gasses and other elements present at the time they were formed result in slight traces of yellow or brown in some diamonds. The less colour a diamond has, the more valuable it is. Many times the colour differences are so slight they can only be detected by comparing them to other diamonds.

Colour differences are measured by the internationally-accepted Gemological Institute of America (GIA) grading scale, and the highest grade for a diamond with absolutely no colour is D. Letter grades are assigned alphabetically all the way to Z. The farther away from the letter D a diamond is graded, the more traces of yellow or brown it will appear to have. The chart on the right illustrates the varying grades for Colour

All diamonds sold by Hearts On Fire are in the colourless or near colourless range. Our experts select only the best. In fact, less than 1% of all rough diamonds in the world will meet the criteria we have established for Hearts On Fire.