regalia (jewelry and other paraphernalia) worn by a sovereign on state occasions

a headdress adorned with jewels

a small crown; usually indicates a high rank but below that of sovereign

a mock crown made of thorn branches that Roman soldiers placed on Jesus before the Crucifixion

The so-called Homagial Crown, also known under its Latin name as the Corona Homagialis, was a part of the Polish Crown Jewels

The papal tiara is a crown that was worn by popes of the Roman Catholic Church from as early as the 8th century to the mid-20th.