Leo Birthstones: Revealing Their Significance, Advantages, and Connections If anybody close to you was born under the Leo sign, they are likely to have a strong personality and a passionate heart. Leo Birthstones are a simple method to honor this individuality in this situation. Given that Leos can be conceited, self-centered, impetuous, possessive, and stubborn, these birthstones help Leos enhance their fire energies while providing a subtle balance in other areas where it is needed.