Peridot is a 5'8, 17 years old nerdy, lesbian student of Gem School, she had blonde, boyish hairstyle, green eyes, and had her father's inverted triangle birthmark on her forehead, she didn't know that she her father is a devil. She had punk, lesbian friend named 'Lapis Lazuli', who was 19 years old and 6'2 tall, had blue punk hairstyle and black earrings, a street fight. Peridot sometimes hates and loves being teased, annoyed by her friend Lapis.