Old mine cut diamonds necklace circa 1930

18-carat white gold necklace, eagle's head hallmark. Also called neglected, it is adorned with two old-cut diamonds each weighing 0.50 carats. They are suspended by knives adorned with diamonds connected to a crown set with old-cut diamonds. Length: 42 cm Presence of a safety chain. Weight: 7.5 g French work around 1930