They managed it without conceding a single goal in regulation play.
Coach Mark said: "The girls kicked off the group games with a convincing 3-0 victory over Bury FC Shakers, just the start you want in tournament football.
"Match two saw the girls up against a small but technically proficient CN Sports. Diamonds running out 1-0 winners in what was to be their only test in the group stages.
"Match three was another comfortable performance where the coaches got a chance to tinker with positions, which resulted in us winning by just the solitary goal despite our dominance on the ball.
"Topping the group saw us progress to the Champions League in the knockout phases.
"In the semi-final we were matched against Timperley. In normal time I thought we were the better team but we couldn’t find the back of net and penalties ensued.
"After years of heartache on penalties the Diamonds now have back to back shootout wins - long may it continue.
"The final saw Diamonds face Maghull, who had topped the other group. I thought we dominated the final but inexplicably couldn’t extend on our early goal. There were numerous goal mouth scrambles and somehow we didn’t get over the line but we managed to see the 1-0 result out even if though we deserved a higher margin of victory.
"Well done Diamonds, what a season."