Kate Middleton stuns in elegant emerald green as she celebrates St. Patrick's Day

Fresh from attending the Commonwealth Service at Westminster Abbey on Monday, Kate Middleton cut an elegant figure in dark green as she attended the St. Patrick's Day Parade at the Irish Guards.

The Duchess of Cambridge joined Prince William on military duty for their annual visit to the 1st Battalion Irish Guards at the Mons Barracks for the first time in two years, since the Covid-19 pandemic began.

Kate wore a Laura Green London coat dress, in an appropriate emerald green for the day out in Aldershot.

She looked the picture of elegance as she took part in the centuries-old tradition of handing out sprigs of shamrock to the Officers and Guardsmen of the Irish Guards, of which Prince William is Colonel.

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As is customary, the Duke and Duchess of Cambridge were greeted by the regiment mascot, a two-year-old Irish wolfhound called Turlough Mor, also known as Seamus.

The Duchess was seen stroking the head of the Irish wolfhound as she presented him with his own sprig of shamrock to mark the occasion.

The 'Emilia' style coat from the British designer features a slightly exaggerated collar, cinched belted waist and military-inspired detailing, much like the designs that Kate has worn in previous years for the event.

The mother-of-three complemented her £3,200 ($5,700AUD) Laura Green London dress with coordinating emerald accessories, including a Mayfair pillbox hat by Lock & Co and a shamrock brooch for the Irish holiday.

The gold shamrock brooch looks to have been borrowed from Queen Elizabeth, who in turn inherited the piece from her own mother’s collection.

However, the brooch is unique in that it is reportedly not actually owned by the royal family.

James Wilson, author of Up the Micks! An Illustrated History of the Irish Guards which features a foreword by the Duke of Cambridge, wrote that the piece was crafted by Cartier and then presented to Princess Mary, the Princess Royal, by the Irish Guards in 1961.

When Princess Mary passed away, the brooch was returned to the regiment, and is lent to the royals on such occasions like the St. Patrick’s Day Parade.

Kate had her signature brunette locks swept into a low bun and kept her make-up simple for the special day out, a calendar date being celebrated by many others across the UK.

Hidden detail in Kate's Commonwealth outfit

The Duchess of Cambridge chose a regal shade for her bespoke Catherine Walker coat dress, Lock & Co hat, and Rupert Sanderson shoes for the Commonwealth Service on Monday.

It is thought that the Cambridges wore the colour not just as a nod to the Commonwealth flag, but also as a show of support for Ukraine (as it appears in the country’s national flag).

Kate’s sapphire jewellery, which once belonged to Princess Diana, included the same necklace and earrings she wore when meeting President Volodymyr Zelenskyy and his wife, Olena Zelenska, at Buckingham Palace in October 2020.

"Fantastic to come together to celebrate #CommonwealthDay and modern, vibrant and diverse communities across the globe at Westminster Abbey today," Kate and William wrote on Twitter.

Additional reporting by Orla Pentelow.

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