Shades of green defined by the government of Bangladesh. Another name for this color is "Bangladesh green". Displayed on the right is the color "bright green". Bright green is a bright shade of green. It is on the color wheel approximately one-third of the way between chartreuse green and harlequin (color #3FFF00) (closer to chartreuse green than to harlequin). Bright green represents a visual stimulus of 556 nanometers on the visual spectrum as measured on the CIE chromaticity diagram. The X11 color "green" is somewhat similar to bright green, with a hex triplet of #00FF00, compared to bright green's triplet of #66FF00. The
Diamond color Gemological Institute of America's scale are valued according to their clarity and color. For example, a "D" or "E" rated diamond (both grades are considered colorless) is much more valuable than an "R" or "Y" rated diamond (light yellow or brown). This is due to two effects: high-color diamonds are rarer, limiting supply; and the bright white appearance of high-color diamonds is more desired by consumers, increasing demand. Poor color is usually not enough to eliminate the use of diamond as a gemstone: if other gemological characteristics of a stone are good, a low-color diamond can remain more valuable as