Conus isabelarum is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
Like all species within the genus Conus, these snails are predatory and venomous. They are capable of "stinging" humans.
The size of the shell varies between 17 mm and 30 mm.
This species occurs in the Atlantic Ocean off the island of Maio, Cape Verde.
