In 2020, women's cricket in England was restructured, creating eight new 'regional hub' teams, with the intention of playing both
50-over and
20-over cricket. Northern Diamonds were one of the sides created under this structure, effectively replacing the
Women's Cricket Super League team
Yorkshire Diamonds and representing the
North East and
Yorkshire, partnering with
Yorkshire,
Durham and
Northumberland. Due to the
COVID-19 pandemic, the 2020 season was truncated, and only 50-over cricket was played, in the
Rachael Heyhoe Flint Trophy. Northern Diamonds won the North Group in the competition, winning five of their six matches to progress to the final. In the final, they faced
Southern Vipers, who scored 231 batting first. However,
Charlotte Taylor's 6/34 helped bowl out the Diamonds for 193, meaning they finished as runners-up. 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. 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. In the play-off, Diamonds beat Southern Vipers by 18 runs to qualify for the final, where they faced
South East Stars. Batting first, Northern Diamonds made 138/4 with captain Armitage making 59
*. However, Stars chased the target down with 2 overs to spare to win by 5 wickets. 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. They faced
Central Sparks in the play-off, and beat them by 6 wickets thanks to
Ami Campbell's 76 to progress to the final, where they again faced Southern Vipers. Batting first in the final, the Diamonds made 183, with Campbell again top-scoring with 60. However, despite reducing Vipers to 109/7, the side went on to lose the final by 3 wickets with 2 balls to spare. final at
Lord's. 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. The side topped the group in the
Rachael Heyhoe Flint Trophy, however, going unbeaten. They faced Southern Vipers in the final, for the third consecutive time in the Rachael Heyhoe Flint Trophy, but this time emerged victorious by two runs. In 2023, they finished fourth out of eight in the
Charlotte Edwards Cup and sixth out of eight in the
Rachael Heyhoe Flint Trophy. Diamonds batter Lauren Winfield-Hill was again the leading run-scorer in the Rachael Heyhoe Flint Trophy, with 663 runs including one century. In 2024, the side finished sixth in the
Charlotte Edwards Cup and finished top of the group in the
Rachael Heyhoe Flint Trophy, before losing to
Sunrisers in the semi-finals. Diamonds bowler
Phoebe Turner was the leading wicket-taker in the Rachael Heyhoe Flint Trophy, with 23 wickets. 2024 was the side's final season, with reforms to the structure of domestic cricket in England meaning that the side was effectively replaced by a professionalised
Durham team. ==Home grounds==