While new Princess Mahkameh of Schaumburg-Lippe added an Emerald Necklace with the Schaumburg-Lippe Palmette Tiara for the
Wedding Ball at Schloss Bückeburg, there are many other guests wearing Tiaras including Princess Lilly of Sayn-Wittgenstein-Berleburg (the first wife of Prince Alexander) wearing the Schaumburg-Lippe Sapphire Parure (h/t to
TiaraMania), Princess Sibilla of Luxembourg (wearing her
Art Deco Tiara), Princess Anna of Bavaria (in the
Sayn-Wittgenstein-Berleburg Diamond Tiara) and the Princess zu Löwenstein-Wertheim-Freudenberg (in the Löwenstein-Wertheim-Freudenberg Emerald Tiara).