Oyster pearls are small, round, milky-coloured semi-precious gems, obtained as a possible reward from opening an oyster. Oyster pearls look the same as an oyster pearl but have three rather than one pearl within. Members with level 41 Fletching can use a chisel on these to make 24 pearl bolt tips, which can be attached to iron bolts to make pearl bolts. It may be preferable to sell the oyster pearls and buy an oyster pearl, giving 6 pearl bolt tips at a fraction of the cost per bolt tip.
They are given as a reward from the Sea Slug quest. Oysters are obtained as a possible drop from a number of monsters (see the table below) - Players can also obtain oysters when big net fishing. Opening an oyster may gain either an oyster pearl, oyster pearls, or an empty oyster.