Kate Middleton - Diplomatic Reception (Photo : Getty Images/Jonathan Brady - Pool)
Catherine, Princess of Wales at an evening reception for members of the Diplomatic Corps at Buckingham Palace on December 5, 2023 in London, England.

Kate Middleton has donned her second tiara in two weeks, less than a month before the year ends.

The Princess of Wales attended the annual Diplomatic Corps reception at Buckingham Palace Tuesday sporting her favorite royal headpiece, the Queen Mary's Lover's Knot Tiara.

Accompanied by her husband, Prince William, Middleton gracefully complemented the tiara with a glimmering, long-sleeved blush pink evening gown by Jenny Packham. The floor-length dress was covered in intricate sequins and embellished with silver accents around the neckline and waistline. 

Kate Middleton - Diplomatic Reception (Photo : Getty Images/Jonathan Brady - Pool)
Britain's Catherine, Princess of Wales attends a reception for members of the Diplomatic Corps at Buckingham Palace, in London, on December 5, 2023.

These are the same tiara and gown she donned for the wedding banquet of Crown Prince Hussein and Princess Rajwa of Jordan, according to InStyle.

For the reception, Princess Kate adorned her ears with the Greville Chandelier earrings, which she also wore to the June banquet.

Her dark chocolate brown hair fell in elegant curls down her back, while her makeup featured a smokey eye, rose blush, and lustrous pink gloss on her lips.

Middleton joined Prince William, King Charles, and Queen Camila to welcome hundreds of members of the Diplomatic Corps to the royal residence. 

Middleton also sported the Lover's Knot Tiara in November last year when she attended her first banquet as the Princess of Wales, as reported by Harper's Bazaar.

She's now worn the headpiece 12 times since 2015, according to People, making it her most-worn tiara throughout her royal life so far. 

According to The Court Jeweller, the beloved tiara was crafted by jeweler Garrard in 1913 for Queen Mary, initially featuring a row of upright pearls, which added an extra height and grandeur compared to its current version. 

It is a replica of the Cambridge Lover's Knot Tiara, worn for years by Queen Mary's aunt, the Grand Duchess of Mecklenburg-Strelitz, and owned by her grandmother, Princess Augusta of Hesse, who was the Duchess of Cambridge.

Since its creation, the tiara has graced the heads of four remarkable royal women: Queen Mary, Queen Elizabeth II, Princess Diana, and Princess Kate.

Meanwhile, Middleton has now donned a tiara twice in a span of two weeks for public appearances.

Last month, the Princess of Wales wore the Strathmore Rose Tiara, a floral headpiece that hadn't been publicly seen since the 1930s, to a state banquet honoring South Korean President Yoon Suk Yeol and first lady Kim Keon Hee. 

 Britain's Queen Camilla, Britain's King Charles III, Britain's Prince William, Prince of Wales and Britain's Catherine, Princess of Wales Kate Middleton (Photo : Getty Images/Chris Jackson/Pool)
(From L) Britain's Queen Camilla, Britain's King Charles III, Britain's Prince William, Prince of Wales and Britain's Catherine, Princess of Wales pose for a picture during a reception for members of the Diplomatic Corps at Buckingham Palace, in London, on December 5, 2023.