Melania Trump sports the 25-carat diamond ring Donald Trump bought her for their 10th anniversary in her first official portrait as US First Lady.

In the picture she is seen in the White House residence sporting a black jacket and matching scarf.

In a statement issued with the photos, she said: "I am honoured to serve in the role of First Lady and look forward to working on behalf of the American people over the coming years."

The portrait will be displayed in the presidential family's residence although the First Lady, 46, hasn't moved in there, preferring to remain at Trump Towers in New York.

The photo has been used on the White House website as part of the US President's official biography.


Image: Mrs Trump and Ivanka Trump at the inauguration

The White House says the former model has "a penchant and passion for the arts, architecture, design, fashion and beauty ... This passion can only be surpassed by her dedication to helping others, and her generosity has been noted."

Mrs Trump has rarely been seen in Washington since her husband's inauguration on 20 January.

She often meets the President in Palm Beach, Florida, when he spends weekends at his waterfront estate there.

:: Melania Trump: From model to US First Lady

Image: The presidential couple at the Freedom Inaugural Ball

The First Lady and her son Barron, 11, are expected to move to the White House after the boy's school year ends.

The portrait shows a confident and relaxed First Lady in marked contrast to some of the shots of her during the inauguration ceremony, in which she appeared at times uncomfortable.