Upon her awakening as a Pureblood Princess, it is instantly noticeable that her appearance is strikingly beautiful like her mother, Juri Kuran, and she has also been praised to have the same "kind and tender eyes/gaze" as her father, Haruka Kuran, in 54th Night. Compared to her hairstyle and appearance as a human, Yuki's hair grows to be much longer, reaching down to the back of her waist as a vampire. Her character development as a vampire is portrayed to be more feminine and more toned down compared to her human side. Yuki's eyes glow red and less brown.
During the time that she had spent living in the Kuran mansion with Kaname Kuran and Hanabusa Aido, Yuki is seen from time to time to be wearing pajamas or long sleeved dresses that reach above her knees. She was also drawn to wearing high heeled shoes or sometimes barefooted. Yuki adorns pretty head pieces and accessories such as hairbands, berets, pearl necklaces, and gloves with ribbons. During important Vampire or Hunter functions, she is dressed in long elegant ballgowns. In 54th Night, it is seen that Yuki gets her pedicure and manicure done by Kaname and Ruka personally. Whenever Yuki leaves the Kuran mansion to go to town in secret, she dresses more casually, but is still very neatly and fully dressed.
Yuki continues to use Artemis as her main weapon after it transforms into a scythe in 41st Night. However, in 83rd Night , Yuki uses Artemis to cut off her long hair, reverting to her old hairstyle to show Kaname that she is upset with his unknown plans and is disappointed by his sudden change in character. In 93rd Night, a thousand years have passed since Kaname threw his heart into the furnace, and it was shown that Yuki has grown out her hair again.
As a child, Yuki's hair was long, reaching the middle of her back.