Labra is a white polar bear cub with a pink hair tuft, left leg and tail, pink heart-shaped ears and light blue heart paw pads on each of her bottom paws. Her Jewel Eyes are made out of black and light blue labradorites. For her attire, she wears a pink pearl necklace with a light green, dark grey and yellow-orange Saturn-shaped labradorite jewel attached around her neck.In the anime, Labra is a baby Jewelpet who acts childishly and impulsive towards others. She cries with small provocation and can be selfish and jealous while trying to cover those actions with a cute act. Occasionally, she will be altruistic for the sake of her friends. She seems to have established a good relationship with Angela and Rosa, and often ends her sentences with the word "labu". In some series, Labra is shown to be much more immature than her friends, who are responsible and not as lazy as herself. She can be highly insulting; like in Twinkle☆, she often calls others "Dummies".

Labra is stated several times to be the most powerful Jewelpet of all. As the Jewelpet of Hidden Powers, she derives power from the universe itself, which she can potentially alter reality according to her wishes. In Jewelpet, she wields the power of Mischief, which can cause unexpected mischief on others.

In most series; when Labra cries, enormous amounts of magic power will be released and may bring destructive consequences to her surroundings.