Preshea has tightly curled glossy black hair and a heart-shaped face, which is often set in a morose expression, as if she intends to kill someone. She is diminutive, with white skin, and is quite beautiful. Sophronia says she has a "low nose". She speaks in a clipped voice that makes it sound like her words are being assassinated. Although never described in the Finishing School books, her eyes are revealed to be a dark, intense blue in Poison or Protect. Even as an adult, she is described as being quite beautiful, with dark hair and porcelain skin.