Pearls come in a variety of colours, such as white, cream, silver, grey, blue, yellow, champagne, olive, pink, gold, green, violet, bronze and black.
Pearl colour has three main components: body colour, overtone and orient. Body colour is the dominant overall colour of the gem. Overtone is one or more translucent colours (secondary colours) that lie over the body colour, and orient is a shimmer of iridescent rainbow colours. It is worth mentioning that all pearls show body colour, but only some display overtone or orient, or both.