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 terms "Champagne", "Cognac" and "Coffee" refer to different types of brown diamonds. In the diamond processing/dealing industry, the word "Brown" is considered a killer as far as diamond value goes. Even though champagne is a light yellow color, champagne diamonds are Light Brown. Cognac is usually used to describe a diamond that is Orangish-Brown because cognac is a deep golden-orange color. Coffee is usually used to describe a diamond that is a Deep Brown or Vivid Brown color. Some grading agencies may also describe brown stones as Fancy Yellowish-Brown, Fancy Light Brown, Fancy Intense Brown, etc. Diamonds that enter the