Peacock pearls are part of the Tahitian pearl family. These lustrous, multi-hued pearls are only produced by black-lipped oysters. The designation of “peacock” covers a wide range of Tahitian pearl shades. A typical Tahitian pearl has a dark gray to coal-black body tone and a variety of iridescent overtones. Peacock pearls feature luminous overtones of navy blue, forest green and deep plum. These tones shift as the pearl is viewed from different angles, giving them complexity and depth. The body tone is usually tinged with dark green as well. Some freshwater pearls are dyed to mimic Tahitian pearls, but few dying processes can capture the tones of a peacock pearl, making fakes easy to detect.