Xiao has dark, thick black hair and similarly coloured eyes, along with a strikingly pale skin tone. Her face has Chinese features. She is slimly built, and is 5'6 in height, which is short amongst purebloods. Currently, her expression tends to be slightly arrogant and cold, as a result of her upbringing, and her smiles are rare. She wears expensive silk dresses at all times, either traditional Chinese outfits or more Western evening dresses.