By Stacey Leasca
July 13, 2017
Credit: Max Mumby/Indigo/Getty Images

Kate Middleton, the Duchess of Cambridge, is well known for her classic and effortless style, and Wednesday’s dinner at Buckingham Palace was no exception.

While attending a banquet dinner in honor of King Felipe and Queen Letizia's Spanish State Visit to the United Kingdom, the Duchess donned a dusty pink Marchesa lace gown with a neckline deemed daring by many.

According to Vogue, Kate’s dress was a mix and match design from the label, bringing together the sleeve detail of one gown and the sheer and lace detailing of another.

And while the dress was truly a head turner, it was the Duchess’s accessories that really stole the show.

The necklace Kate wore was a breathtaking Y-shaped diamond and ruby number loaned to her by the Queen herself.

As Vogue noted, the necklace, along with the matching earrings, was a wedding gift to Queen Elizabeth from her parents. The set has reportedly not been worn since the 1980s.

And atop her royal head Kate wore none other than the very famous Cambridge Lover’s Knot tiara that was a wedding gift from the Queen to Princess Diana when she married Prince Charles.

Credit: Anwar Hussein/Getty Images

The diamond and pearl tiara was a favorite of Diana’s and a piece she wore frequently to royal events. As Parade detailed, the tiara features “19 pearls hanging from a series of diamond-encrusted arches each topped with a lover’s knot design.”

However, this isn’t the first time Kate has been photographed wearing this particular headpiece. As Yahoo noted, the Duchess has worn it on a number of occasions, including at her 2011 wedding to Prince William. She wore it again in 2013 to a white-tie reception and twice in 2015.

Credit: DOMINIC LIPINSKI/AFP/Getty Images; Max Mumby/Indigo/Getty Images

Kate has made it clear in recent months that she is a fan of Diana’s signature style. As Travel + Leisure previously reported, the two apparently share a love of both priceless tiaras and cheap-chic Superga sneakers.