Fancy colored diamonds exist in all shades, hues and colors of the rainbow, but some of the most popular colors are blue, champagne, yellow, chocolate and black. Many colorful diamonds are treated in ways that enhance their colors, and there's nothing wrong with that as long as the treatment is disclosed to you. Fancy Color Diamonds: How do they get their color? Natural fancy color diamonds get their coloring in different ways: * Trace elements in the diamonds can produce color; nitrogen creates a yellow diamond. * Color can result when radiation is present during a diamond's creation; green diamond hues are the result of radiation. * Inclusions are undesirable in a colorless stone, but can contribute unique tones and flashes of color in a fancy color diamond. Diamond Color Manipulations Gemologists can create fancy color diamonds by manipulating less desirable diamonds to alter their colors. Irradiation, followed by a high heat treatment, can turn brownish and pale yellow diamonds into richly colored, affordable gems. Black Diamonds Black diamonds have a lot of character. Due to their deep, opaque color, they create a chic, dramatic look at a relatively affordable price. They are fashionable on their own, and elegant when paired with white, contrasting diamonds. Champagne Diamonds Champagne diamonds are not as expensive as white diamonds and are available in a sparkling range of champagne tones, from light to dark champagne and fancy cognac. Blue Diamonds Blue Diamonds are a are a spectacular addition to anyone's colored diamond collection. Most blue diamonds on the market have been heat-treated to enhance their color. Yellow Diamonds Yellow or canary diamonds are another great addition to a diamond collection. Most of these diamonds are also usually heat-treated to produce an intense yellow color. Some interesting color combination's are: Black, chocolate and white - or Blue, yellow and white