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Irradiated Diamonds
Irradiated blue melee.
Described as irradiated blue, it is ususally an aqua-blue.
Described as an irradiated green, it is usually a forest green.
Irradiated diamonds are stones that have been artificially treated to enhance or change a color. These treatments are commonly used on diamonds that have an undesirable tint to improve their value and salability. For example a P-Q color, which is noticeably yellow but not intense enough to call a fancy yellow, can be treated to darken its level of saturation and/or change its hue. The treatments are somewhat predictable, based on years of experience, but the exact color outcome can sometimes be disappointing.
