Formidable American Vogue editor Anna Wintour threw an extravagant wedding for her son Charlie Shaffer to Elizabeth Cordry, at her Long Island estate on Saturday.

Shaffer, 28, a third year medical student at Columbia University, tied the knot with 27-year-old Elizabeth Cordry at the Wintour's mid 19th-century American white clapboard weekend home known as 'Mastic'.

While the intimate wedding was a private affair, guests which consisted of designers, photographers, and Vogue staff offered us a sneak peak into the big day via Instagram using the hashtag #thismasticmoment.

The groom’s sister, Bee Shaffer, posted a picture of the Bride's Oscar de la Renta gown with the caption "always a bridesmaid". Shaffer herself wore a Prada dress and it is thought Anna Wintour wore Chanel, although there are no pictures of her at the event.

Anna Wintour's son weds in beautiful and stylish ceremony