gold star set with amethysts and diamond

A suite consisting of a pair of earrings and a brooch / pendant in gold, each in the shape of a star with ve points invisibly set with high kite shaped amethysts and a rose cut diamond in the center, 19th century.

dimensions brooch: 4 cm
weight brooch: 10.2 grams
dimensions earrings: 2.5 cm
weight: 10.3 grams