The diadem was designed by the court jeweler Duval in St Petersburg in 1825, see design drawing in the link – and also produced.
Originally, 16 acacia branches set with diamonds were to be arranged as ornaments, as provided in the design. In the original, however, it was much more.
Alternating with this, flower ornaments with diamonds and a sapphire and 2 diamond roses were placed in the diadem.
The „S“-shaped diamond volutes connect the different ornaments with each other.
The base ring consisted of 9 sapphires framed by diamonds and alternating four diamond intermediate parts.
The center of the tiara consists of two sapphires. A crescent-shaped cabochon sapphire and an oval sapphire together form a rosette.
The diadem was originally designed as a Kokoshnik, then as a Coronet crown.
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