This sorguç /Ottoman sultans' turban ornament/ was gifted by Ottoman Sultan Abdulhamid I to Russian Empress Catherine the Great in commemoration of the Treaty of Küçük Kaynarca.
The aigrette is adorned with over 1000 diamonds and a precious rectangular-cut The aigrette adorns a 35-carat red and yellow sapphire.
Сollection of Moscow Kremlin Museums.
The Treaty of Küçük Kaynarca /Küçük Kaynarca Antlaşması; Кючук-Кайнарджийский мир), formerly often written Kuchuk-Kainarji, was a peace treaty signed on 21 July [O.S. 10 July] 1774, in Küçük Kaynarca (today Kaynardzha, Bulgaria) between the Russian Empire and the Ottoman Empire, ending the Russo-Turkish War of 1768–1774 with major concessions to Russia. The concessions to Russia were not merely territorial; not only was the Crimean Khanate effectively ceded to Russia, but Russia also gained the right to construct a Russian Orthodox church in Constantinople, claiming to be the protector of the Orthodox Christians in the Ottoman Empire.
The aigrette is adorned with over 1000 diamonds and a precious rectangular-cut The aigrette adorns a 35-carat red and yellow sapphire.
Сollection of Moscow Kremlin Museums.