Queen Mary’s Dazzling Diamond Tiara for the Duchess of Gloucester at the Guildhall

Another day, another set of fabulous heirloom jewels from Queen Mary’s collection for the Duchess of Gloucester! For tonight’s banquet at the Guildhall, the Duchess reached for pieces of Queen Mary’s jewelry set with diamond and pink topazes.

Fresh off Tuesday’s state banquet, the Duke and Duchess of Gloucester joined the Lord Mayor of London, Alastair King, and his wife, Florence Walker, as they welcomed President Emmanuel Macron of France and his wife, Brigitte Macron, to the Guildhall for a traditional banquet.

For the occasion, Birgitte wore a classic winter white evening gown with the sash and star of the Order of the Garter, the Royal Family Orders of Charles III and Elizabeth II, and diamond and pink topaz jewelry inherited from Queen Mary through Princess Alice, Duchess of Gloucester.

The spotlight piece of the ensemble was Queen Mary’s Honeysuckle Tiara, made in 1914 by Garrard using diamonds from the dismantled County of Surrey Tiara. The center element of the tiara can be worn with different interchangeable gemstones. Birgitte wears the tiara with an all-diamond centerpiece, a diamond and emerald option, and the piece she chose for Wednesday’s dinner, which has been described variously as a kunzite or a pink topaz in a diamond cluster.

Birgitte paired the tiara with diamond earrings from Princess Alice’s collection, as well as her diamond and pink topaz necklace. She also pinned Alice’s diamond flower brooches to the center of her bodice, in the place of buttons, and stacked diamond bracelets on her wrists.

On Birgitte’s left wrist, she also wore another spectacular pink topaz piece: a bangle-style bracelet featuring a large pink topaz in a slender diamond cluster, with additional diamonds on bracelet as well. Just outstandingly elegant, as per usual.

UPDATE: Yep, there’s more! On the back of her dress, the Duchess pinned a pair of diamond clips and used another family diamond brooch to secure her Garter sash. The clips, delightfully, come from yet another heirloom tiara: the bandeau given to her mother-in-law, Princess Alice, as a wedding gift in 1935 by her husband, Prince Henry, Duke of Gloucester. The clips can be worn as part of the tiara or separately, and when they’re removed, emerald and diamond elements can be swapped in to the bandeau as part of a secondary setting. Fabulous!