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
Orlov (diamond) in many years. Lord Twining's book "A History of the Crown Jewels of Europe" mentions how once, during a circa 1913 inspection of the crown jewels by the curator, the stone accidentally fell out of its sceptre. He weighed the stone, but did not write down its exact weight. He later said that it was about , which corresponds to the measurement-based estimate. Orlov (diamond) The Orlov (sometimes spelled Orloff) is a large diamond of Indian origin, currently displayed as a part of the collection of the Diamond Fund of the Moscow Kremlin. It is described as having the shape