Art Deco 18K Gold & Diamond Bar Brooch

750 / 1000th 18 karat gold bar brooch, openwork worked in millegrain, set with 30 rose cut diamonds and a line of 10 old cut diamonds for a total diamond weight of approximately 1.50 carat.
1930s work in pure art deco style.
Weight 6.72 grams
Length 7.60 centimeters.