Known for her active style and orthodox stance, Luciano utilized her cage work and striking to control the later rounds.
This fight capped off a 12-bout card and was broadcast live as a major showcase for women's MMA in Latin America.
The matchup featured Luciano representing Minas Gerais against Caetano representing São Paulo.
Watch the full championship battle between Stephanie Rondinha and Karina Caetano to see how the title was won:
After 25 minutes of action, the judges scored the bout in favor of Rondinha, who secured the vacant 115-lb belt.