Blue sapphires are classified by GIA as Type II this means that they typically have inclusions, Blue sapphires with extremely high clarity are rare, and valuable.
Very Included
Too many inclusions that the sapphire is unpleasant to seeToo many inclusions that the sapphire is unpleasant to see
Included
nclusions are visible to the naked eye, inclusions are no so much distracting
Very Slightly included
Inclusions are visible to the unaided eye but they do not distract from the beauty of the Sapphire
Eye Clean
Inclusions are not seen by the unaided eye