Meghan wears $65k of designer goods for women's charity visit in LA as children's royal titles are confirmed

A designer-clad Duchess of Sussex has been seen for the first time since it was confirmed her and Prince Harry's children will be known as Prince Archie and Princess Lilibet.

Meghan was all smiles as she left the Gracias Madre restaurant in West Hollywood with a friend hours after she and her husband announced their daughter had been christened, using Lili's princess title for the first time.

The duchess carried a Chanel handbag costing a whopping $US6,400 ($9,724) and wore the black Max Mara 'Lilia' cashmere coat, retailing for $US5000 ($7500).

READ MORE: Palace officials 'expecting' Harry and Meghan to attend coronation

Her white slip-on shoes are by Valentino, costing $US770 ($1170) while Meghan's sunglasses are also by the luxury Italian fashion house and retail for $US217 ($330).

Meghan accessorised with the gold Cartier Tank Française watch that previously belonged to Diana, Princess of Wales, which retails for upwards of $30,000, and Diana's diamond tennis bracelet.

READ MORE: 'Archie and Lili's titles show Harry and Meghan need money'

The duchess also wore her Cartier love band bracelet – worth around $14,000 – and three other delicate bracelets that appear to have diamonds on them.

But Meghan's trilogy diamond engagement ring was missing; instead she wore just her wedding ring and eternity band.

Meghan dined at the restaurant, known for its vegan and organic dishes, to celebrate International Women's Day.

As the duchess was getting into her waiting car, she told the group of photographers: "Have a good day guys, thank you so much".

READ MORE: Harry appears on stage in California hours after title changes

Earlier, Meghan had visited the women's charity Harvest Home in Los Angeles, an organisation that helps provide housing and mental well-being support to expectant mothers who have faced challenges including domestic violence, substance use and homelessness.

News of her charity visit was revealed on the Archewell website.

"As an advocate for women's rights and supporter of mothers and families in need, Meghan, The Duchess of Sussex and the Archewell team celebrated the women of Harvest Home by creating a pop up baby boutique, hosting lunch from a female owned restaurant, and making a donation to the organisation," the statement read.

"Happy International Women's day to all of you! Whether donating your time, funds, or helping a woman in your community, let's all celebrate the women in our lives today and every day!"

Photographs of Meghan helping to sort baby goods were also shared.

Soon after Meghan's day out in LA, the royal family's official website updated its line of succession list with her children's new titles.

Prince Archie of Sussex and Princess Lilibet of Sussex are listed on the site, from the previous Master Archie Mountbatten-Windsor and Miss Lilibet Diana Mountbatten-Windsor.

It is understood the titles will be used in formal settings but not in everyday use by the couple.

Prince Harry and Meghan later released a statement the move as being their children's "birthright since their grandfather became monarch".