Jude Gallagher's gold medal in the men's featherweight Boxing at the NEC surpassed Northern Ireland's best-ever Commonwealth Games total of 15 medals at Birmingham 2022 on Sunday.
The 20-year-old claimed a walkover victory over opponent Joseph Commey of Ghana, who withdrew from their final after being declared medically unfit to participate in the morning.
Northern Ireland won 15 medals in Edinburgh in 1986 and three golds and a silver in Sunday afternoon's session saw them draw level with that total.
Gallagher was disappointed he did not get the opportunity to fight for gold but was proud of his achievement.
He said: "It's a real shame. I did my bit and turned up ready to fight. I can't do much more than that but I am disappointed that lots of people have come here to see the featherweight final and he hasn't made it.
"He says he wasn't able to fight. I have to say OK. I can only do what I can do. The fact that my opponent hasn't got on the scales before the fight and says he is not fighting is nothing to do with me.
"I'm naturally very disappointed but at the same time very proud. I've won the Commonwealth Games and that's something I will never forget.
I've won the Commonwealth Games and that's something I will never forget
"I fought three really tough fights and beat the English lad (Niall Farrell) by stoppage so I'm very proud of how I have boxed here."
Michaela Walsh followed up her brother Aidan men's light middleweight gold with the women's featherweight title after beating Elizabeth Oshoba of Nigeria for Northern Ireland's fifth gold medal of the day and 17th of the Games.
On winning gold the same day, Walsh admitted she was prouder of her younger brother and that she got emotional on the podium when remembering her late grandfather Niall.
She said: "Seeing him win his gold is more special than me winning mine. He’s my baby brother and to see him achieve his dream is what I have dreamed of myself.
"It’s phenomenal. The whole family was (proud). I have no words for it.
"That (the tears) was for my grandad, Niall. I didn’t achieve it before he died in 2014. I felt he was there with me watching over me tonight."
Seeing him win his gold is more special than me winning mine. He’s my baby brother and to see him achieve his dream is what I have dreamed of myself
Ioan Croft claimed Wales' second gold of the day as he won a unanimous points victory over Stephen Zimba - who claimed Zambia's first silver medal of Birmingham 2022 - in the men's welterweight final.
Canada's Tammara Thibeault, who won bronze on the gold coast, outclassed Mozambique's Rady Adosinda Gramane to win women's middleweight gold.
The Boxing drew to a close after Delicious Orie of England celebrated winning the Commonwealth men's super-heavyweight title after victory over India's Sagar Ahlawat.
The 25-year-old Orie turned his focus to emulating Anthony Joshua after surviving a rough-and-ready final where he lost the first round on all five judges’ cards before rallying to claim a unanimous decision victory.
Orie, who has trained with Joshua in Sheffield, added: “The sky is the limit. My inspiration has always been Anthony Joshua, and what he has achieved is the bare minimum. I am the next generation and we are going to excel.
He added: “I might have been doubted but I will always prove people wrong. I am so proud to be English and representing England, and I can’t wait for the Olympics in Paris.”