What Causes Pearls to be Different Colors?
Pearls come in a variety of colors and shades, from white, cream, and pink to black with blue, green, or purple overtones. Many factors are responsible for the color of a pearl, but it is for the most part up to chance. A black-lipped oyster does not usually create a white pearl, and it is very rare for other oysters to produce a black pearl. Other than that, however, there is little certainty about what color pearls you can expect to harvest from certain oysters or certain areas.
