Diamonds come in a rainbow of vivid hues–yellows, reds, pinks, blues, greens, purples, and shades in-between.
Natural fancy color diamonds get their coloring in different ways:
From different trace elements present in the stones, such as nitrogen, which produces a yellow diamond.
From exposure to radiation during the diamond's creation. Green diamonds are an example of gems affected by radiation.
Inclusions, regarded as undesirable in a colorless stone, often contribute unique tones and interesting flashes of color in a fancy color diamond.
Natural diamonds outside the D-to-Z color range are called “fancy colored diamonds.” You may also hear them called “fancies.” To be considered “fancy colored” a diamond must display one of the following features: