Empress Marie Feodorovna of Russia wears an elaborate diamond and sapphire festoon necklace, as well as additional jewels from a coordinating parure, in a portrait by Konstantin Makovsky, ca. late nineteenth century; the necklace, which includes a sapphire that measured a whopping 159 carats, was confiscated after the revolution and later disappeared

Empress Marie Feodorovna of Russia wears her diamond and pearl wave necklace (with her diamond fringe tiara, two pearl necklaces, and the necklace’s coordinating brooch) in a portrait by Ivan Kramskoi, ca. 1881; the necklace and brooch were part of a parure (possibly made by Cartier) that was confiscated by the Soviets after the revolution and subsequently disappeared