The royal family hosted a lavish banquet at Buckingham Palace on Monday night to honor President Donald Trump's United Kingdom visit.

Attendees were decked out in sparkling jewels, ball gowns, and tuxedos with tails. Many people on social media particularly took note of Queen Elizabeth II's Burmese Ruby Tiara. According to the Royal Exhibitions website, the 96 rubies set into the tiara "represent the number of diseases that the Burmese people believe can afflict the human body."

"They credit the ruby with prophylactic properties guarding the wearer not only against illness, but also against evil," the site explains.

Twitter users were quick to make assumptions about why the queen opted to wear that tiara with Trump.

The British royal family owns a deep trove of tiaras and crowns and Queen Elizabeth II is most often spotted wearing the the Girls of Great Britain & Ireland Tiara.

She received the Burmese Ruby Tiara as a wedding gift from the people of Burma (now Myanmar). It's possible she wore the tiara to raise attention about the human rights situation in Myanmar. More than 900,000 Rohingya refugees, a Muslim-majority ethnic group from the country's Rakhine State, have fled military-violence in Mynamar to neighboring Bangladesh, where they live in squalid conditions in the world's largest refugee camp.

US lawmakers have found issue with the Trump administration's silence regarding human rights violations in Myanmar. As noted by ABC News, the president has never spoken out publicly about the situation and stopped short of calling the violence against the Rohingya a genocide, a term used by the United Nations.

A spokesperson for Queen Elizabeth II said they do not provide comment on the queen's choice of jewelry.