Garnet is leader of the Crystal Gems since Rose Quartz's death; she has a strong, commanding presence, and her sense of humor is often masked under a serious tone. She takes her duty as one of Steven's caretakers seriously, judging when to give him space and encouragement to grow as a person, and when to keep him on the sidelines and out of danger. She's patient, rational, and often who the other gems look up to for guidance. Garnet is the fusion of Ruby and Sapphire, and possesses Sapphire's fusion vision ability. However, she is not without faults. Sometimes she can be brash, or lose her trademark cool composure when a situation spirals out of control.

Voice reference: https://www.youtube.com/watch?v=tCx0eKcKIlc