Said to be a Romanov necklace.Described in a book by Stefano Papi, "Jewels of the Romanov Family and Court" as a garland style necklace created in 1854 by Chaumet, but the caption for the photo does not mention for whom it was made.
French Empire Regency Era Faceted Coral & Gilt Tiara
French Empire Regency Era Faceted Coral & Gilt Tiara. This piece is made of gilded brass and decorated with fine filigree wirework and hand cut coral. Thirteen teardrop shaped coral stones represent the points of the tiara and a row of faceted coral stones form a single row at the base. ca. 1800's