The girl wizard from the Harry Potter movies had been seen enjoying the company of several young men over the summer but seems to have settled once more upon the 25-year-old banker and Prince William lookalike.
Together again: Emma Watson attended the Frieze Art Fair in London with financier Jay Barrymore
The couple held hands as they attended a London art fair in Regent's Park. It was not clear whether Mr Barrymore suggested she invest some of the £2.8million she earned over the last year in a piece of modern art. Asked if she had plans to purchase a painting, Miss Watson merely giggled.
The low-key evening out was in marked contrast to the more lively nightlife Miss Watson has enjoyed since she turned 18 in April.
Who's who? Emma's boyfriend Jay Barrymore (right) bears a striking resemblance to Prince William (left)
She has visited several London night spots in the company of Italian actor Roberto Agnillera, whom she met in July during an eight-week Shakespeare course at RADA. She took him for a day out at the Cartier Polo - while Mr Barrymore was away on holiday - and was also seen chatting to a host of young men eager to impress her.
Among them was 19-year-old Francis Boulle, a Franco-Mauritian philosophy student at Edinburgh University with whom she later swapped phone numbers.
Despite her success as an actress Miss Watson has pledged to continue her academic career following her current gap year.
After gaining straight As at A-level, she plans to study English literature in the UK or a liberal arts degree in the U.S.
All smiles: The pair, who were first spotted together in March, looked quite the happy couple
Her parents Chris and Jacqueline, lawyers who met at Oxford University, are said to be keen their daughter goes on to higher education.It was reported that they did not approve of Mr Barrymore when he first began dating their daughter because of the seven-year age gap.
However, her current choice of companion must surely be less upsetting than rocker Johnny Borrell, on whom she had a crush early this year.
The pair were linked after she attended a party with the Razorlight frontman in February.
Borrell is an old flame of American actress Kirsten Dunst.
After their relationship ended, Miss Dunst had to spend a short spell in rehab.
