[12] At the end of the season, five Diamonds players were given full-time domestic contracts, the first of their kind in England: Hollie Armitage, Beth Langston, Linsey Smith, Phoebe Graham and Jenny Gunn.

[13] The following season, 2021, Northern Diamonds competed in both the Rachael Heyhoe Flint Trophy and the newly formed Twenty20 competition, the Charlotte Edwards Cup.

In the Charlotte Edwards Cup, the side topped Group B with four wins from their six matches, just edging out Western Storm on Net Run Rate to qualify for the play-off on Finals Day.

[14] In the play-off, Diamonds beat Southern Vipers by 18 runs to qualify for the final, where they faced South East Stars.

[16] In the Rachael Heyhoe Flint Trophy, Northern Diamonds again qualified for the knockout stages, finishing second in the group with five wins from their seven matches.

[19] In 2022, the side finished second in their Charlotte Edwards Cup group, with three wins from their six games, missing out on qualifying for Finals Day as the worst second-placed team.

[24][25] Diamonds batter Lauren Winfield-Hill was again the leading run-scorer in the Rachael Heyhoe Flint Trophy, with 663 runs including one century.