Produced in the bodies of marine and freshwater mollusks naturally or cultured by people with great care. Lustrous, smooth, subtly-coloured pearls are jewellery staples, especially as strands. There are four major types of cultured pearls: Akoya, South Sea, Tahitian and Freshwater, and occur in a wide variety of colours. The most familiar colours are white, cream, black and grey, but the palette of pearl colours extends to every hue. Pearl is the birthstone for June and the gem of the 3rd and 30th anniversaries.