Couple that with the diamond earrings, a brash attitude, devastating knockout power and ring walks with Daryl Braithwaite's The Horses ringing around the arena, and you've got the showman Australian boxing craves.

Listen to Dean Lonergan talk about the undefeated boxer, and one gets the sense the man who brought the biggest fight Australia has ever seen to life has stumbled upon a promoter's dream.

For this is a man the UFC were desperate to get their hands on - and for good reason.

Hardman (8-0) secured the national middleweight crown and a pair of regional titles in a majority decision (97-93, 96-96, 98-92) win over Tej Pratap Singh in Brisbane on Thursday night.

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Now the 24-year-old is poised to break into the top 15 in IBF and WBO's rankings having claimed the IBF Australasian belt, the WBO Oriental strap and the ANBF Australian championship.

Two contrasting styles turned the bout into the toughest of Hardman's career with Singh landing his fair share of telling shots throughout.

Yet the Queensland native emerged victorious to continue a meteoric rise in boxing having turned his back on an undefeated mixed martial arts career.

"The biggest question mark on my name was whether I could do the 10 rounds, because I knock everyone out in the first two rounds," Hardman said.

"I've answered that question now, I've ticked that box, and now it's a bit scarier because people know they've got to be worried all the way through to No. 10.

"I'm happy, I'm stoked, I couldn't fault it. I'm confident in the exchanges, I was smiling, I was f---ing loving it, it was awesome.

"We knew he was going to be tough, there is no doubt about that. I don't ever, ever underestimate anyone. We're in a boxing ring, he's in that ring because he can f--ing fight.

"Anyone that underestimates anyone is getting hurt. I come off as brash and confident, but that's not being arrogant to their skills. They're unreal, and that's why I'm in there.

"That's exactly how the fight was going to go the whole time. He's hard to catch clean, he's cagey, and he comes forward. It's uncomfortable.

"Pressure makes diamonds, and pressure is a privilege. That's why I'm in there."

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Hardman could soon find himself hunting international opposition to continue his climb up the rankings having claimed regional titles.

But should his next fight come on the domestic scene, promoter Dean Lonergan is interested in a bout between Hardman and Canberra middleweight Beau Hartas next year.

"Top 15 in the world with the IBF and WBO. We're just go onto bigger and better things, it's all gravy baby, let's go," Hardman said.