The Investiture Coronet was designed by the architect and goldsmith Louis Osman (1914-1996) and given to HM The Queen by the Goldsmith’s Company for The Prince of Wales’s Investiture at Caernarfon in 1969. It is 24 carat gold, with the 4 Crosses Patées and the 4 fleur-de-Lys made from a nugget of Welsh gold, reinforced with platinum and decorated with diamonds and emeralds. The orb mounted on the top of the arch was engraved by Malcolm Appleby with The Prince of Wales’s insignia. This is surrounded by 13 diamonds arranged as the constellation of Scorpio, The Prince of Wales’s star sign. The diamonds set horizontally represent the 7 Gifts of God on one side and the 7 deadly sins on the other.