A Columbian emerald set pendant, 20th century

18 ct yellow gold, 1 Columbian emerald in emerald cut weighing approx. 30,00 ct, colour: green and transparent, adjusted; 3 brilliant cut diamonds weighing in total approx. 0,25 ct F-G/SI, dimensions: 4 x 2 cm, weight: 19,00 g; accompanied by an IGI Antwerp identity report/certificate