Iranian Crown Jewels spinels are the six surrounding the top of the mace, each weighing 40 carats (8 g). Malecka, A. "The Mystery of the Nur al-Ayn Diamond", in: Gems & Jewellery: The Gemmological Association of Great Britain vol. 23, no. 6, July 2014, pp. 20–22. https://issuu.com/jeweller/docs/jeweller_g_j__sept_2014_/58 Malecka, A. "Daryā-ye Nur: History and Myth of a Crown Jewel of Iran", Iranian Studies vol. 51 (2018), https://dx.doi.org/10.1080/00210862.2017.1362952 Meen, V.B, Tushingham, A.D. Crown jewels of Iran, Toronto 1968. Iranian Crown Jewels The Iranian National Jewels (), originally the Iranian Crown Jewels (), include elaborate crowns, thirty tiaras, and numerous aigrettes, a dozen bejeweled swords and
Prussian Crown Jewels with the lavish, heavily bejewelled crowns of other monarchies (e.g. British, Russian), the Prussian crown jewels were sometimes described as "rather plain". The regalia includes: In the absence of further state regalia for the German Empire (1871–1918), the older royal Prussian Crown Jewels were sometimes also regarded as the German Crown Jewels: Prussia became a part of the German Empire in 1871 and its king also became German emperor. The German Empire became a republic in 1918 and, at the same time, Prussia became part of the federal republic. Most of the Prussian regalia are on public display in the