Silver and 585 gold 19th c. navette shape brooch, foilback setting rose-cut diamonds, three in the center are more important, length 4 cm

Silver and 585 gold 19th c. navette shape brooch, foilback setting rose-cut diamonds, three in the center are more important, length 4 cm

Overall condition is very good, considering the agge of the piece.
Presence of some scratches and oxydaton trace.
Measurements of the 3 biggest stones :
7.7x8.13
9.29x6.33
7.03x6.00