Meghan Markle's outfit she wore for a photocall following the news of her engagement sold out in one hour.

Prince Harry and fiancee Meghan Markle

Prince Harry and fiancee Meghan Markle

The 36-year-old actress and her 33-year-old fiancé Prince Harry pair posed for pictures at the White Garden - a memorial spot for the royal's late mother Princess Diana - in the grounds of Kensington Palace fans yesterday shortly after it was confirmed they are set to tie the knot next year.

During their debut appearance as an engaged couple the 'Suits' actress donned a forest green dress from Milan-based fashion house P.A.R.O.S.H, which had a side bow detail on the waistline.

And according to The Blast Online the luxury garment, which retails for just under $500, has been highly sort after by fans of Meghan and the royal family and saw the garment snatched up in a record breaking 60-minutes.

It has been reported the fashion house are doing their utmost to re-stock the piece because it has been in such high demand within the last 24 hours.

The company are grateful Meghan donned their products, and they do not know how they can ever thank her for attracting attention to their collection.

A spokesperson for the label sad: "We are very excited... [trying] to understand how we could ever thank Meghan!"

Meghan also sported a chic white wrap coat from Toronto-based brand Line the Label, which was part of their Autumn/Winter capsule.

And the star finished off her simple yet elegant look with nude Matilde Crisscross Suede Aquazzura heels, which boast a 105mm platform and have an ankle strap, and retail for approximately $400.

Meghan - who has been dating the 33-year-old royal for over one year - also flaunted her glitzy engagement ring, which is made of three-stones; a larger central stone from Botswana - where the couple enjoyed a safari holiday in September - that is positioned between two diamonds taken from his late mother's, Princess Diana, personal collection.

But that was not the only piece of stunning jewellery the star wore as she also donned a pair of Les Plaisirs de Birks 18 karat yellow gold earrings fitted with white opals in the centre, which fetch £850.