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

Color certificates For most purposes in daily life, "light" and "dark" suffice in conveying to someone the shade of a color you are referring to. But with color diamonds, preciseness is of the essence and different laboratories have created naming schema that they apply as consistently as possible to the stones they grade.                    The primary aspect is the Hue, i.e. the color of the stone. It can be a single color ("yellow"), or a combination of colors ("greenish-yellow"). If two terms are used, the second one is the predominant color. The second aspect is the Intensity, which is defined both as a function of the saturation of the color (how strong the color is) and as a function of whether the color is light or dark. The intensity is indicated by adding a prefix to the color: faint, light, normal, intense, vivid, or deep/dark. As a general rule, a faint color can only be seen when the stone is compared to a colorless diamond. A "normally" intense color will have no prefix. Intense, vivid and deep means that the color is strong, but indicates increasing degrees of darkness. "Fancy" is sometimes put in front of the color. This indicates that the diamond is exceptionally attractive, and is used in conjunction with all prefixes except "faint" (i.e., a faint stone cannot be "fancy").