r – Champion relinquished title.
s – Champion stripped of title.
On July 30, 2011, Ana María Torres won the very first female Diamond Belt by defeating Jackie Nava at Bantamweight.
On October 13, 2012, Ava Knight won the Diamond Belt at Flyweight, decisioning Mariana Juárez. On May 11, 2013, she defended this title against Linda Soto from Mexico by unanimous decision.
On January 14, 2017, Amanda Serrano beat Yazmín Rivas to become the Diamond Champion at Super bantamweight.
On September 30, 2017, Jessica Chávez beat Esmeralda Moreno to win the vacant WBC female Diamond flyweight title.