Diamonds, like all other gemstones formed in the earth, are subject to other outside influences of chemical intrusion. If the diamond is pure and no other chemicals have intruded into the crystal growth, the diamond will be colorless or like “Sparkletts” pure water.
If the diamond has a tinge of yellow that is the intrusion of nitrogen. Manganese can cause red to orange to yellow colors. Iron can cause green to blue to yellow colors. Cobalt can cause
pink colors. Copper can cause green, blue, or red color. The deeper the color, into a saturated color, the more expensive the price. However, vary faint tinges cause the price to drop. See the attached color charts to help explain that.
If the diamond grows around radiation, the results may affect the crystal and cause an ultraviolet reaction. If the reaction is too strong it may cause a murky or hazy appearance in the crystal. This type of reaction will drop the price dramatically and affect the brilliancy.