Queen Máxima is resplendent in ravishing ruby tiara and unusual gown

The mother of three previously wore the diadem to the wedding of Prince Carl Philip and Princess Sofia of Sweden in 2015.

The Argentinian-born Dutch royal teamed her rubies with the most unusual red gown with a boat neckline from Jantaminiau with a zigzag print across the bodice. Her makeup look featured coordinating crimson lipstick and a deep brown smokey eye.

Prior to the Portuguese state banquet, Queen Maxima was spotted wearing a tiara to the official state banquet during the state visit of Queen Letizia and King Felipe of Spain. 

The mother of three looked straight from a fairytale in a pale blue ballgown by Jan Timiniau with a Bardot neckline and diamond brooch on the bodice. 

Accompanying her stunning gown was a showstopping Stuart tiara and the sparkliest diamond drop earrings from Queen Wilhelmina's collection.

She also previously wore her ruby parure at the state banquet in honour of Yoon Suk Yeol, Korean President of the Republic of Korea, and his wife Kim Keon Hee during their state visit to the Netherlands.

Maxima wore a crimson and burgundy Costarellos gown with crochet panelling and three-quarter-length sleeves to complement her dripping rubies.

Ahead of the state banquet, the King and Queen welcomed President Marcelo Rebelo de Sousa with an official ceremony at the Dam Square in front of the Royal Palace. 

DISCOVER: Queen Maxima stuns in velvet suit for festive night out in London

The royal wore a muted caramel-toned longline wool coat from Max Mara with the 'Gianvito 105' pumps from Gianvito Rossi in the same colour and the 'Intrecciato Knot Long Clutch' from Bottega Veneta which oozed quiet luxury.