Promotional grade, is a round to slightly off
round, semi-clean, moderately cultivated pearl with
medium low luster and a white to creamy white color.

Top promotional grade, is a round, semi-clean, moderately cultivated pearl with medium to medium low luster and
white color.

Good commercial grade, is a round, clean, moderately cultivated pearl, with medium luster and a light body color.

Top commercial grade, is a round, clean, well-cultivated pearl, with medium high luster, a light body color and silver or
pink overtones.

Fine or gem quality grade, is a round, clean, heavily cultivated pearl, with very high luster, a light body color and silver or pink overtones.