natural color colour diamond encyclopedia encyclopædia naturel naturelle diamant couleur encyclopédie natural color diamond fancy color diamond color diamond encyclopedia sectionmedia stephane aisinber vivid purple pink brilliant intense pink hexagon intense pink radiant brownish pink pear shape light brown cushion chocolat brown brilliant deep reddish brown pear shape olive green emerald grayish-yellow oval deep orange brilliant brownish-yellow heart shape intense orange oval vivid yellow triangle vivid orange yellow marquise yellow cushion olive green brilliant intense yellow pear shape deep yellow triangle deep olive green marquise olive brown cushion grayish olive oval intense greenish yellow princess yellowish green bishops hat intense yellowish green radiant vivid green blue oval grey blue pear shape grey brilliant intense blue Asscher cut deep blue oval

Natural color diamonds defined Diamonds of all colors can be found in nature. Over 300 colors have so far been identified, however these come in an infinite number of shades and hues. From pink to black, spanning all the colors of the rainbow including blue, red, yellow, green, gray and brown, natural color diamonds are all excluded from the D to Z classification, which only applies to colorless ("white") diamonds.                    Given their diversity but above all their rarity, a specialized nomenclature has been created in an attempt to properly classify, and evaluate the quality of natural color diamonds. Indeed, the criteria by which their quality is judged are very different from those used to evaluate colorless diamonds (the 4 Cs), and therefore their certificates also.