Carrie Symonds married Boris Johnson in a £2,900 dress by Greek luxury designer Christos Costarellos.
The British Prime Minister and Symonds had their top secret wedding on Saturday, exchanging vows in front of 30 guests in London's Westminster Cathedral.
The long-sleeve, high-neck embroidered tulle dress featured lace appliqué and latticework trims.
According to Costarellos' website, the gown was made for a "woman who's not afraid to shine" in mind.
It is sold out in all sizes.
The bride combined the wedding dress with a floral headpiece including lily of the valley, daisies and white roses.
The couple announced their engagement and that they were expecting a baby, in February last year.
Their son, Wilfred, was born in April 2020.