The crown is composed of a solid gold frame, set with tourmalines, white and yellow topazes, rubies, amethysts, sapphires, garnet, peridot, zircons, spinel, and aquamarines, step-cut and rose-cut and mounted in enamelled gold collets, and with a velvet cap with an ermine band.The band of the crown is bordered by rows of gold beads and mounted with sixteen clusters, each set with a rectangular or octagonal step-cut stone in a collet decorated in enamel with modelled acanthus leaves…