Stowers, who is 17 years old, set a new Commonwealth record in the women’s +90kg, lifting 108kg in the snatch, 131kg in the clean and jerk, and 239kg overall.
An emotional Stowers wiped away tears of joy as she climbed atop the podium to receive her three gold medals.
Luisa Peter of the Cook Islands claimed silver in the snatch and overall, while Nauru’s Charisma Amoe picked up silver in the clean and jerk.
In the men’s 94kg, Kari secured all three gold medals on offer, lifting 155kg in the snatch and 195kg in the clean and jerk.