An Art Déco ring, 1930s-40s

yellow gold (unmarked, approx. 14 ct), 1 central diamond weighing approx. 0,40 ct G/VS2, 12 16/16 cut diamonds weighing in total approx. 0,10 ct, 12 square cut sapphires weighing in total approx. 0,25 ct, 12 emeralds weighing in total approx. 0,15 ct, size: 12, weight: 3,81 g; condition report: 1 emerald chipped, a later band and setting