Tonight, the royal family is hosting a formal state banquet at Buckingham Palace in honor of President Donald Trump's official visit to the United Kingdom. As with most state banquets, the ladies of the royal family have brought out their most serious jewels for the royal affair: sparkling tiaras.

The President and First Lady are currently on a three-day visit to the country, during which they will meet with numerous members of royal family. Queen Elizabeth, Prince Charles, Camilla, Duchess of Cornwall, and the Duke and Duchess of Cambridge are all in attendance at tonight's banquet.

The Queen arrived wearing Burmese ruby and diamond tiara, paired with a ruby and diamond necklace, both of which are part of a suite of jewels crafted by Garrard. The tiara features 96 rubies that were a gift to the Queen from the people of Burma. In 1973, the Queen commissioned House of Garrard to create a tiara out of these pieces.

U.S. President Trump's State Visit To UK - Day One
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Donald Trump, Queen Elizabeth, Melania Trump, Prince Charles, and Camilla, Duchess of Cornwall at tonight's state dinner.
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Another look at the Queen’s tiara.

Camilla, Duchess of Cornwall wore a sparkling Diamond Boucheron tiara, also known as the Greville tiara, for the occasion. The Duchess also wore a evening gown by Bruce Oldfield.

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Camilla arriving at the state dinner with the United States Ambassador to the United Kingdom, Woody Johnson.

Kate chose the Cambridge Lover's Knot tiara, another piece created by Garrard, for the evening. The Duchess of Cambridge paired the sparkler with an Alexander McQueen dress.

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The Duchess wearing the Lover’s Knot tiara as she arrives at the banquet.
U.S. President Trump's State Visit To UK - Day One
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The Duchess of Cambridge en route to Buckingham Palace wearing the Lover’s Knot tiara.

Princess Anne, the Queen's only daughter, also wore a dazzling tiara to the affair. She entered the banquet alongside Jared Kushner. Anne wore a diamond and aquamarine tiara, often called the Aquamarine Pineflower tiara, paired with a matching necklace.

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Princess Anne arrives at the banquet with Jared Kushner.

Sophie, Countess of Wessex, debuted a newly redesigned tiara at the state banquet. Sophie wore a remodeled version of her wedding tiara—the diamond elements of the tiara were completely reconfigured on a brand new base.

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Sophie entering the banquet with Chancellor of the Duchy of Lancaster David Lidington.

Birgitte, Duchess of Gloucester chose Queen Mary's Honeysuckle tiara for the occasion, one of her go-to tiaras. The Duchess paired the diamond sparkler with diamond earrings and a necklace that reportedly came from the collection of Princess Alice, her late mother-in-law, according to the Court Jeweller.

U.S. President Trump's State Visit To UK - Day One
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The Duchess of Gloucester arrives at the banquet wearing a diamond tiara.

Princess Michael of Kent was also in attendance at the banquet, wearing the diamond and pearl Kent Pearl Festoon tiara.

U.S. President Trump's State Visit To UK - Day One
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Princess Michael of Kent wearing a diamond and pearl tiara.
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Another look at Princess Michael’s tiara from the banquet.

Princess Alexandra, the Queen's cousin, wore the Ogilvy tiara to the banquet. The pearl and diamond tiara is Princess Alexandra's go-to design.

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Princess Alexandra wearing the Ogilvy Tiara as she arrives at the banquet.

Formal state banquets are one of the rare occasions where royals typically wear tiaras. One of the most recent tiara-worthy occasions was back in October 2018, when the royal family was hosting a banquet in honor of King Willem-Alexander and Queen Maxima of the Netherlands. For that elegant affair, Queen Elizabeth wore the historic Girls of Great Britain and Ireland tiara, while Camilla wore the Greville tiara. Queen Maxima brought some sparkle of her own, wearing the Stuart tiara for the evening.

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Queen Maxima of the Netherlands wore the Stuart tiara to a state dinner in London back in October 2018, while Queen Elizabeth chose the Girls of Great Britain and Ireland tiara, and Camilla wore the Greville tiara.

Catherine, Duchess of Cambridge also wore the Cambridge Lover's Knot tiara for the Dutch state dinner last October. The design has quickly become one of Kate's go-to tiaras—the Duchess previously wore the tiara to a diplomatic reception in 2015, and to another state banquet when the Spanish royal family visited the United kingdom in 2017. The classic style was also a favorite of Princess Diana's.

For the Dutch state visit banquet in October 2018, the Duchess paired the topper with an Alexander McQueen dress and a dramatic necklace that dates back to 1863, having once belonged to Queen Alexandra.

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Kate wearing the Cambridge Lover’s Knot tiara at the Dutch state banquet in October 2018.

The Trumps will conclude their state visit on Wednesday, June 5.

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Maggie Maloney is the Site Director of Oprah Daily. She previously worked at Town & Country, Elle DECOR, and Something Navy.