This post from The Court Jeweller has some lovely pictures of the September 2020 wedding of Archduchess Gabriella and Prince Henri of Bourbon-Parma. I don't think there has been a post about the wedding on this site, but my apologies if there has. Both bride and groom are great-grandchildren of Grand Duchess Charlotte of Luxembourg. Archduchess Gabriella wore a tiara from the Luxembourg Royal jewel collection.
http://www.thecourtjeweller.com/2020/12/the-best-royal-jewels-of-2020-5.html.