Queen Mary shows off gorgeous new tiara at state banquet

The Aussie-born royal, 52, celebrated her first year as monarch by putting her own stamp on the Danish crown jewels, donning her new headpiece for a state banquet.

The King and Queen of Denmark hosted a gala dinner at Christiansborg Castle in honour of the visiting President of Egypt. Picture: Instagram/Kongehuset

Aussie-born royal Mary, Queen of Denmark, has put her own stamp on the Danish crown jewels, transforming a diamond belt from 1840 into a dazzling modern tiara.

The glittering new headpiece was unveiled this week and on display for the first time as the Danish King and Queen attended a state banquet at Christianborg Castle in Copenhagen to welcome the visiting President of Egypt, Abdel Fattah El-Sisi.

HRH The King and Queen Mary of Denmark hosted a gala dinner at Christiansborg Castle in honour of the President of Egypt, Abdel Fattah Al Sisi. Picture: Instagram/Kongehuset

The 52-year-old queen is the latest in a long line of Danish royal women to adapt the collection to suit contemporary styles and their own preferences, opting for a sleek bandeau-style setting that lets the spectacular stones do the talking.

The piece was created by jeweller Matias Hasbo Dinesen, who consulted with the Royal Danish Collection and worked closely with the Queen to develop the design.

Queen Mary wore a dramatic black gown, featuring a fitted silhouette, high neck, embellished sleeves, and knee-high slit at the back, ensuring the tiara was the star of the show.

Her brunette locks were swept into an elegant low chignon.

Queen Mary’s new tiara was made from a diamond belt dating back to 1840 reflects her simple, elegant personal style. Picture: AFP

The diamonds on the tiara are known as the Rose Stone set and they are one of the four parures, or sets of matching jewellery, that make up the crown jewels.

It refers to the style by which the stones were cut, a vintage style that creates multiple facets, ensuring the light reflects in many directions at once to create a sparkling effect.

In addition to the rose-cut diamond set, there is a brilliant-cut diamond set, a pearl-ruby set and an emerald set, all of which must remain in Denmark.

All of the parures are kept in the treasury at Rosenborg Castle.

Queen Mary wore the new tiara with a black dress and simple chignon. Picture: Instagram/Kongehuset

The rose stone set dates back to 1840 and was previously a chain with a large pendant in the middle, made at the request of Queen Caroline Amelie, wife of King Christian VII.

Queen Mary revealed the new Rose Stone Tiara on social media this week

However, historically this has been the set least worn by Danish queens.

Queen Mary has so far been making good use of the collection, pairing a pearl tiara with a midnight blue Jesper Hovring gown while she and King Frederik hosted Icelandic President Halla Tomasdottir and her husband Bjorn Skulason at a state visit earlier this year.

That piece was created from silver and gold, featuring white diamonds and pearls.