The latest victories lifted Nigeria's overall medal haul to six gold and four silver medals, further cementing one of the nation's strongest performances at the Commonwealth Games.
Lawal delivered one of the standout performances of the competition in the women's 58kg event, producing a dominant display from start to finish to win gold while setting a new Commonwealth Games record.
The Nigerian lifter opened with a 103kg snatch to establish a commanding nine-kilogram lead over Canada's Ann-Sophie Taschereau before sealing victory with a 126kg clean and jerk. Her combined total of 229kg set a new Commonwealth Games record.
Taschereau claimed the silver medal with a total lift of 215kg, while India's Bindyarani Devi Sorokhaibam settled for bronze after finishing with 199kg.
Earlier in the day, Umoafia got Nigeria's medal charge underway by winning gold in the men's 71kg category with a record-breaking combined lift of 319kg.
The Nigerian began with a 147kg snatch before matching the competition's best clean and jerk effort of 172kg to secure victory and establish a new Commonwealth Games record.
Samoa's John Lautafi Tafi also lifted 172kg in the clean and jerk but finished with an overall total of 314kg to take silver, while Nauru's Ezekiel Moses claimed bronze with 310kg.
Didih completed Nigeria's golden treble after dominating the women's 53kg competition.
She opened with a 93kg snatch, setting new Commonwealth and Games records before producing another outstanding clean and jerk performance to finish with a combined total of 206kg, another Commonwealth Games record.
India's Gyaneshwari Yadav took silver with 199kg, a lift that also surpassed the previous Games record, while Canada's Rebeka Groulx secured bronze with 178kg.
Monday's outstanding performances further strengthened what has become one of Nigeria's most successful weightlifting campaigns in Commonwealth Games history.
Earlier in the competition, Ruth Asuquo Nyong won silver in the women's 48kg event, while Favour Agboro narrowly missed out on a podium finish after placing fourth in the men's 65kg category.
Nigeria's weightlifting team has now contributed three gold and one silver medal, complementing another impressive display from the country's para powerlifting squad.
In para powerlifting, Esther Nworgu, Folashade Oluwafemiayo and Riluwan Idris have all claimed gold medals, while Esther Oyema, Roland Ezuruike and Rita Ferdinand have each secured silver.
The latest triumphs sparked celebrations within the Nigerian contingent as attention gradually shifts to the athletics events, where Team Nigeria will be aiming to build on an already outstanding Commonwealth Games campaign.