PICS: Kate Middleton steps out with The Queen and the Duchess of Cornwall

The historic moment took place at Fortnum & Mason

It was a special moment earlier today when Kate Middleton stepped out with the Duchess of Cornwall and The Queen on a public engagement without Prince William for the first time.

KATE MIDDLETON'S STYLE HIGHS & LOWS

The three royal ladies paid a visit to Fortnum & Mason in London's West End to take a tour around the luxurious food hall and to unveil a plaque to mark the renovation of Piccadilly.

Later today, Kate, Camilla and The Queen will also attend at a tea party at the store for around 150 staff, suppliers and former employees, including some who worked there at the time of the Queen's Coronation.

The glamorous trio were greeted by Mayor of London Boris Johnson, who was snapped sharing a joke with the Duchess of Cambridge outside the world-famous store.

For this most important of royal engagements the Duchess wore a collarless M Missoni blue coat from the autumn/winter 2010 collection teamed with some grey suede heels by Rupert Sanderson. Her look was topped off with her usual voluminous tresses and some Links of London earrings.

As a lovely Spring-like touch and a nod to St David's Day, Kate wore two daffodils on her M Missoni coat.

Wonderful!

KATE MIDDLETON'S STYLE HIGHS & LOWS

THE DUCHESS OF CAMBRIDGE DAZZLES ON FIRST SOLO VISIT