Uma Thurman is reportedly engaged to Arpad Busson. The 'Kill Bill' actress - who has been dating Swiss financier Arpad, who is nicknamed Arki, since last year - showed off a diamond ring so big "so can't fit it through the sleeve of her coat" at Elton John's 10th White Tie and Tiara benefit in Windsor, England, last night.

An onlooker told the New York Daily News newspaper: "All the ladies were wide-eyed because the ring was so massive! It was so huge that she can't fit it through the sleeve of her coat."

Uma - who has two children with ex-husband Ethan Hawke - was shocked when Arpad presented her with the ring during their UK trip, which will also see them celebrate former South African president Nelson Mandela's 90th birthday.

A friend of the actress said: "It was a really old-fashioned romantic gesture. It's a done deal. They're already planning the wedding."

The 38-year-old actress recently appeared in a court case against Jack Jordan, a man who was found guilty of stalking her.

The friend added: "Everyone is so happy for Uma after what she went through with that stalker. Arki is a guy who can take care of her.

"Uma is hoping this time, it's really love. Everyone wants the best for her. And Arki is a really sweet guy."

Uma was previously married to actor Gary Oldman, while Arpad has two children with Australian supermodel Elle Macpherson.

RELATED PHOTOS AND ARTICLES
Uma Thurman - Paycheck Los Angeles Premiere - ArrivalsUma Thurman - 2007 Wings WorldQuest Woman of Discovery PresentationUma Thurman - Paycheck Los Angeles Premiere - ArrivalsUma Thurman - Paycheck Los Angeles Premiere - ArrivalsUma Thurman - Kill Bill Vol. 1 Los Angeles PremiereUma Thurman - 35th Annual Film Society of Lincoln Center Gala Tribute to Meryl Streep - Green Room
Uma Thurman's Stalker Found GuiltyTime's 100 Most Influential People in the World - Red Carpet Arrivals
Elton John Offered $5.2M For A Russian Gig"Motherhood" Film Set in the West Village of New York City on May 23, 2008
Elton John "Red Piano" 200th Concert at The Colisseum at Caesars Palace in Las Vegas - June 21, 2008Elton John And Boyfriend Love To Watch SATC
BE THE FIRST TO COMMENT ON THIS STORY!
Name: (optional)
E-Mail: (required, but never displayed)
Remember your info for next time?
Profanity and other defamatory language is not allowed. Please keep it clean.