The Australian won all six rounds of the diving event at Birmingham's Sandwell Aquatics Centre to claim his first major title with an overall title of 501.30.
But his best was undoubtedly saved for the last jump of the competition.
Following two top dives from his competitors, the long-haired Aussie produced an incredible forward 4.5 somersaults in tuck worth 103.60 to seal top spot.
“As soon as I hit the water, I knew I was going to get some high marks,” Rousseau said after.
“I started with typical gymnastics, high bars and all that, and then I switched to acrobatics and did that competitively and also circus work, which does help me perform. I just like to perform.”
“For Australia, I feel like I’ve done them pretty proud, and for myself and my mum. That’s pretty much the top three I want to do proud.
“Every competition I go to in a different country, I like to get a little new tattoo. I might get two in England after this performance.”
Rousseau's grandfather Michel Rousseau won Olympic gold in the in the track cycling men's sprint at the Melbourne 1956 Olympic Games.
Producing a dive of such a calibre two years out from the Paris 2024 Olympics could mean there will be another Olympic medallist in the family soon.
“Hopefully I can at least try and get a medal. Hopefully I will do him proud - and did him proud today."
Commonwealth Games 2022: Men's 10m platform final results
- Cassiel Rousseau, Australia - 501.30
- Rylan Wiens, Canada - 492.80
- Matty Lee, England - 477.00
- Nathan Zsombor-Murray, Canada - 447.85
- Benjamin Tessier, Canada - 440.30
- Bertrand Lises, Malaysia - 419.60
- Noah Williams, England - 408.90
- Aidan Heslop, Wales - 408.00
How to watch 2022 Commonwealth Games
The Commonwealth Games will be broadcast live in many parts of the world.
UK: BBC TV, BBC iPlayer and BBC website.
Canada: CBC Sports, CBC Sports app
Australia: Channel 7, 7Plus
New Zealand: Sky, TVNZ
India: Sony LIV
Further TV broadcast and digital live streaming details can be found on the Commonwealth Games website here.