Margarites is a genus of sea snails, marine gastropod mollusks in the family Margaritidae.

[1] This genus belonged previously to the subfamily Margaritinae in the family Turbinidae.

The Alaskan specimens of Margarites costalis reach almost 25 mm in diameter.

Their flat shell has a turbiniform shape with convex whorls and a typical iridescent lustre.

Species within the genus Margarites include:[1]