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
Crown Jewels of the United Kingdom Mary II was crowned as joint sovereign with her husband William III. After the Acts of Union 1707 joined England and Scotland together, the Scottish Crown Jewels were locked away in a chest, and the English Crown Jewels continued to be used by British monarchs. Gemstones were hired for coronations – the fee typically being 4% of their value – and replaced with paste and crystals for display in the Jewel House, a practice that continued until the early 20th century. During World War II, the Crown Jewels were stored in the basement of Windsor Castle. The most valuable gems,