Ruby is a member of Ishigami Village. She is one of the three Sparkly Sisters along with her siblings Garnet and Sapphire. Her parents are Alabaster and Dia. Ruby is a young woman with long black hair that she wears in two high ponytails, tied with rope. Her bangs are full and rounded such that they frame her face. Her eyes are large and wide, with visible eyelashes on her upper eyelid. Her eyebrows are hidden by her bangs but appear quite thin. She also has full lips that tend to be in a pouting shape. Her outfit consists of a short, turquoise-blue dress with a ragged hem. It has no sleeves and is instead held up by a relatively thick piece of rope, tied at the front but leaving a gap for her cleavage. Unlike her sisters, she does not share a resemblance to her ancestor, Lillian Weinberg, but her hairstyle bears a resemblance to another ancestor, Connie Lee. According to Kohaku, she and her sisters are the prettiest women in the village. Ruby's main interests are food and finding a man who could provide for her. She has the most practical desire out of the three sisters, as the other two prefer superficial features in men. Thus, she is the most interested in getting to know Senku because of the ramen he introduced to the village.