Topaz has long pitch black hair that she rarely does anything with beyond washing and brushing it and tying it up in a ponytail or bun when she's experimenting. She had blue eyes that would be pretty except for the cold glint in them and a pale complexion. She rarely smiles unless forced to for a picture or something pleases her, such as one of her experiments being successful. Topaz wears neatly tailored, practical clothing that is not too feminine or frilly. She does not wear make-up even though her mother wouldn't care and is unlikely to notice in the first place, because she doesn't care for it. Primping is much too trivial a thing for her.