- Green Diamonds
Natural green diamonds are characteristically light in tone and low in saturation. Their color often appears muted, with either a grayish, brownish or yellowish cast. Green diamonds with no other secondary hues or modifiers are some of the rarest. Green diamonds get their color when radiation displaces carbon atoms from their normal positions in the crystal structure. This can happen naturally when diamond deposits lie near radioactive rocks or artificially as a result of irradiation treatment. Due to their rarity and the very real possibility of treatment, green diamonds are always examined very carefully in gemological laboratories. Depending on intensity and purity of color, green diamonds can command astronomical prices.