Limehouse resident Scarlett Mew Jensen won silver at the Diving World Championships in Fukuoka, Japan.
The 21-year-old was competing in the 3m Synchro event with her partner Yasmin Harper from Sheffield and not only won a medal, but also secured a GB Olympic quota spot for Paris 2024.
It was the first ever medal won by GB women on springboard at a World Championships.
"There's loads of emotions, I'm still in shock, still can't really believe it," Mew Jensen told the BBC.
"I'll definitely have a massive cry later and got a few tears earlier, nothing crazy, but yeah, I'm incredibly proud of both of us. Unbelievable."
Their two require dives gave them a solid standing as the event reached the halfway stage as they scored 49.80 and 47.40 respectively to put them in second place - a position they would hold throughout the five rounds.
Their form continued on the third dive – a Forward 2 ½ Somersaults 1 Twist Pike (5152B) tightening their grip on the provisional silver medal, with a score of 68.40 with two rounds to go.
In the penultimate round the pairing made their intentions clear with an impressive score of 70.68 on their Forward 3 ½ Somersaults Pike (107B) to give them their highest individual dive score of the final and a clear path to their first medal together on the world stage.
GB's Lois Toulson and Andrea Spendolini-Sirieix won an historic silver in the 10m synchronised, while Jack Laugher and Anthony Harding claimed a second successive World Aquatics Championships silver in the men's 3m synchro.
Mew Jensen went to school in Bethnal Green and at St Marylebone and has lived in the East End all her life.
She trains at the Aquatics Centre on the Queen Elizabeth Olympic Park in Stratford and was named Canary Wharf Sports Personality of the year in 2012 at the age of 12.
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