The moment when China's first lady Peng Liyuan made her diplomatic debut upon her arrival at Moscow on Friday - wearing a dark navy overcoat, a light turquoise silk scarf with a matching handbag - the Chinese fashion industry got a boost.

Images of Peng stepping off a plane arm-in-arm with her husband, President Xi Jinping, have circulated widely on the Internet, prompting praise for her style, which Web users described as understated and sophisticated.

It's not clear which company or companies designed the clothes worn by Peng in Moscow.

While a report in China Business News said Peng was wearing a jacket and purse made by Exception de Mixmind - a top-end Guangzhou-based brand - another report on news portal Sohu.com said the Guangzhou Administration of Quality and Technology Supervision confirmed that Peng's clothes were custom-made by Ma Ke, the chief designer for the Wu Yong brand.

Both brands have declined to comment.

However, regardless of the brand, Peng's endorsement of Chinese labels has surprised millions of Chinese who favor foreign fashion brands.

The first lady's style was dubbed by netizens as Liyuan style. The exact purse and coat she donned have become top search items on Taobao.com, a major shopping website.

Also, Exception's physical stores have seen a rising number of visitors.

Domestic fashion brands' stock prices were also boosted on Monday by the first lady's choice. Shares of Dayang Trands, which has made suits for many State leaders, rose about 10 percent on Monday, while shares of high-end fashion brand Kaiser China Holding Co Ltd increased 3.04 percent and Lancy Group was up 10 percent.

Local designers and fashion brands always get a boost when the wives of State leaders choose domestic brands for important occasions.

US first lady Michelle Obama wore a custom-made Jason Wu gown for her two inaugural balls, bringing sudden fame to the 26-year-old designer.

Obama's colorful selections - ranging from J. Crew to Jason Wu - have boosted the American fashion industry, said fashion critic Jiang Xingyi.

Related:

Video: Beauty expert praises First Lady style

Photos: China Fashion Week 2013 A/W

Designer savors acclaim from European debut

Though winter isn't usually a fruitful season, the past winter brought a bountiful harvest to Macao-born designer Gideon Tam.More...

Feted abroad, ignored at home

While Wang Peiyi's designs are attracting plenty of attention in Europe, back home in China not many people have even heard of him.More...

China Fashion Week gaining international reputation

China Fashion Week 2013 (autumn/winter) opened in Beijing's D-Park on Sunday with a show from Italian luxury leather label Gherardini following another one from Chinese independent fashion designer Wang Peiyi.More...

Young designers seek boost abroad

Chinese faces bloom in fashion

Chinese fashion designers need to connect to international customers