Mum loves George Clooney's Beirut-born fiancée Amal Alamuddin

George Clooney's mother is "extremely happy" her son is engaged to Amal Alamuddin.

Nina Warren is over the moon the Hollywood hunk has popped the question to the British human rights lawyer because she thinks she's a "lovely girl".

Speaking to the MailOnline, she said: "You can say I'm extremely happy, Amal's a lovely girl."

Nina admits she and her husband Nick, who met Amal over a year ago, weren't surprised when they found out the couple had got engaged because they are well suited, due to their similar interest in international affairs.

She explained: "We weren't at all surprised when they told us they were engaged, and we couldn't be happier for them. On an intellectual level, they are equals. That is very important to him. Amal's world couldn't be more different from the Hollywood lifestyle."

Nina also believes Amal, 36, is completely different from George's previous girlfriends - including Stacy Keibler, Lisa Snowdon, and Renée Zellweger - because she has budding career and is very intelligent.

Asked if Amal is similar to other woman who have dated George, 52, she replied: "Heavens, no! She's a lawyer, she is brilliant, she is a very bright woman and at the very top of her career."

London law firm confirms engagment news

George Clooney —Hollywood's most eligible bachelor — is getting hitched.

Leading human-rights practice Doughty Street Chambers spilled the news Monday as it congratulated one of its own attorneys: 36-year-old U.K. barrister Amal Alamuddin.

The firm said its lawyers and staff "offer their best wishes and congratulations to Ms. Amal Alamuddin ... and Mr. George Clooney on their engagement to be married."

Clooney, 52, was married to actress Talia Balsam from 1989 to 1993. He has since been romantically linked to several women, including British model Lisa Snowden, Italian actress Elisabetta Canalis and former professional wrestler Stacey Keibler.

But he has always downplayed suggestions he might marry again, telling Esquire magazine last year: "I wasn't very good at it."

The Beirut-born, Oxford University-educated Alamuddin is a member of Doughty Street's international law team and has a high-profile client list. She has advised former U.N. Secretary-General Kofi Annan on Syria, helped ex-Ukrainian Prime Minister Yulia Tymoshenko challenge her imprisonment and represented WikiLeaks founder Julian Assange during his fight against extradition to Sweden.

Clooney, whose recent films include "Gravity" and "The Monuments Men," is one of Hollywood's most powerful actors, directors and producers.

He also has a strong interest in international affairs and human-rights issues, and has campaigned for action on the humanitarian crises in Sudan and South Sudan.

Doughty Street chief executive Robin Jackson said Alamuddin had been "utterly wonderful" since she joined the firm in 2010.

"She brings a bright light to everything she is involved in and I am so delighted at her happy news," he said.

Clooney and Alamuddin have been photographed together several times since late 2013 and rumors of an engagement have been circulating for several days.

People Magazine reported that Alamuddin was seen sporting a large ring during dinner at a Malibu restaurant last week.

Clooney's spokesman, Stan Rosenfield, declined to comment.

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