Pearl Girls are a class of women in Gilead, and can be considered a sub-class of Aunts. They are young women who act as Gilead's missionaries, going abroad to countries such as Canada to try and recruit more women to Gilead.
Pearl Girls wear silver dresses and fake pearls.
After nine years of training as Supplicants, Aunts-in-training perform missionary work as Pearl Girls. Once this is complete, they become full Aunts.
Pearls are supposed to allow themselves to be "tempted" abroad. This means that they often allow themselves luxuries, such as ordering pizzas.
The Pearl Girls as a class were founded by Aunt Lydia some years into Gilead's creation.
Daisy sees Pearl Girls in Toronto quite often. Pearl Girls visit Neil and Melanie's store, The Clothes Hound, passing out pro-Gilead brochures, including ones concerning the story of Baby Nicole - unaware that Daisy is in fact the missing child made legendary at the behest of Aunt Lydia. Neil and Melanie warn Daisy to stay away from them, claiming that they are masters of recruiting vulnerable teenage girls, such as promising atheistic girls that they will liberate the women of Gilead.