Nature has provided a whole spectrum of colors in the makeup of diamonds, ranging from red to pink to green, blue, and yellow. The color of a diamond depends on factors such as trace elements which might still be in the chemical structure of the diamond, the pressure and temperatures during growth, and the presence of other elements, such as radioactive materials, during growth.
Most diamonds range in color from white, or colorless, to yellow.
This is caused by the nitrogen existing to varying degrees within the diamond. These diamonds make up what is called the cape diamonds.