Art Nouveau Oversized Paste Gemstone Butterfly Brooch medusa All set on articulated square

All set on articulated square panels

tests as 14k gold (chain is marked 585)

My reading of these marks: it was made in Russia during the mid 19th century

scalloped edges

04ct colour change sapphire

Art Nouveau Oversized Paste Gemstone Butterfly Brooch medusa All set on articulated squareDATE: Art Nouveau, c. 1930 A charming, oversized butterfly brooch dating from the Art Nouveau period, circa 1930. The wings are set with glistening white paste gemstones, all of different sizes, creating great movement in the wings. With four purple paste stones that are set in the centre, and green and red on the outer and centre parts of the wings. It's a great colour combination, with the addition of an agate body, which rests in between two silver