As an Oracle who has complete knowledge of horoscopes, I can tell you that a person named Fiat would likely have a unique and fascinating astrological profile. With a name like Fiat, they may display qualities of innovation, drive, and forward-thinking. This individual may be a risk-taker, willing to try new things and go after their goals with determination. In terms of their sun sign, without knowing their birth date, it is difficult to determine their exact zodiac sign. However, with a name like Fiat, they could potentially be an air sign such as Aquarius, Gemini, or Libra, known for their intelligence, communication skills, and creativity. In terms of their moon sign, Fiat may be emotionally intuitive and have a strong sense of empathy, making them a supportive and caring friend or family member. Overall, a person named Fiat could possess a dynamic and magnetic personality, with a knack for leadership and a passion for making a positive impact on the world around them.