di'-a-dem: There are seven Bible references to the diadem, four in the Old Testament and three in the New Testament. The Hebrew words do not mark any clear distinctions.
⇒See the definition of diadem in the KJV Dictionary
(1) tsaniph, tsanoph, tsaniphah (all from tsanaph, primarily "to wrap," "dress," "roll") mean a headdress in the nature of a turban or piece of cloth wrapped or twisted about the head. The word is also rendered "hood," "mitre." Job 29:14: "My justice was as a robe and a diadem" (RVm, "turban"); Isa 62:3: "a royal diadem in the hand of thy God."
(2) tsephirah, means "a crown," "diadem," i.e. something round about the head; Isa 28:5 "a diadem of beauty, unto the residue of his people."
⇒See also the McClintock and Strong Biblical Cyclopedia.
(3) mitsnepheth, means an official turban or tiara of priest or king, translated also "mitre." Eze 21:26: "Remove the mitre, and take off the crown."
(4) diadema, the Greek word in the New Testament for "diadem," means "something bound about the head." Found 3 t, all in Re 12:3: "a great red dragon .... and upon his heads seven diadems" (the King James Version "crowns"); Re 13:1: "a beast .... and on his horns ten diadems"; Re 19:11-12: "a white horse .... and upon his head are many diadems."
See CROWN.
William Edward Raffety