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 include the Koh-i-Noor diamond presented to Queen Victoria in 1850 following the British conquest of the Punjab. Originally and set in an armlet, it was cut down to an oval brilliant weighing , which Victoria mounted in a brooch and circlet. The second was Queen Mary's Crown; also unusual for a British crown in having eight half-arches, it was made in 1911 for the coronation of Queen Mary and George V. It contains 2,200 diamonds and has contained Cullinans III and IV. In 1914, both stones and the Koh-i-Noor were replaced with crystal replicas and the arches were made detachable