November has two birthstones: topaz and citrine. Although they are not common stones for tiaras, Princess Stéphanie, Hereditary Grand Duchess of Luxembourg has worn a historic citrine tiara. 

Since her 2012 wedding to Hereditary Grand Duke Guillaume, Princess Stéphanie has worn the Luxembourg Citrine and Pearl Bandeau Tiara multiple times. 

This tiara features yellow stones alternating with arcs of pearls set in a yellow gold band. 

Grand Duchess Josephine Charlotte first wore this tiara in the early 1980s. The Grand Ducal court has actually never confirmed if the tiara is set with topazes or citrines or revealed the jeweller who made it.

Grand Duchess Maria Teresa has worn this tiara several times, including for the first official portrait after becoming Grand Duchess. 

Princess Stéphanie notably wore the citrine and pearl diadem to Princess Madeleine of Sweden’s June 2013 wedding. 

This favourite tiara is not solely limited to current and future Grand Duchesses, though. 

Princess Margaretha of Liechtenstein and Princess Alexandra of Luxembourg have both also worn this unique tiara. 

The Citrine and Pearl Tiara is actually part of a demi-parure, a small set of coordinating jewellery. The necklace features three citrines (or topazes) on pearl loops, and the earrings include a round citrine (or topaz) circled in pearls with a citrine drop with yellow gold details.