Russian Imperial Order of St. Alexander Nevsky with 19th century round mine cut diamonds and tips of star of rose cut diamonds. Total carats: 16.6 ct. Total number of diamonds: 609
The order was presented by Captain Hiltebrant of the H.I.R.M. "Razboynik" in the name of Tsar Alexander III on January 21, 1884 as a reciprocal gift for the Royal Order of Kamehameha I and collar that King Kalakaua had gifted.