A tourmaline and pearl set diamond ring, 1930s-40s

14 ct white gold, platinum standard 0,950, the large rectangural platform with foliate motifs set with 20 diamonds in various cuts weighing in total approx. 0,50 ct G-J/VS2-SI2, 1 cultured freshwater pearl measuring 4,20 mm in diameter, 1 square cut green tourmaline weighing approx. 0,25 ct, size: 16,5, weight: 8,02 g; accompanied by a gemmologist’s certificate