Antique gold and diamond sleeper earrings

So-called sleeper earrings in 18k (750°/°°) gold and silver set with “old mine cut” diamonds in a fleur-de-lysé bezel. Each of the main diamonds weighs approximately 0.25ct (GH Si) and is topped with a smaller rose cut diamond. French work circa 1870-1880. Presence of eagle's head hallmarks and traces of manufacturer's hallmark. Numbering 3774 Height: 1.5 cm Weight: 4 grams