A pair of multi gem drop earrings, 20th century

18 ct white gold, 2 oval cut citrines weighing in total approx. 10,00 ct, 4 rectangular cut aquamarines weighing in total approx. 5,50 ct, 2 round cut amethysts weighing in total approx. 4,50 ct, 2 oval cut pink tourmalines, 8 brilliant cut diamonds weighing in total approx. 0,30 ct G-H/VS, length: 6,5 cm, weight: 15,12 g