Ring with diamonds and sapphires made of gold

1 diamond weighing about 0.40ct F-G/VVS, 2 diamonds weighing a total of 0.30ct F-G/VS-SI, 24 diamonds total weight of diamonds in the product about 1.00ct, 2 sapphires weighing a total of about 0.20ct
product weight: 7.22g pr. 0.750 gold, certified by HRD Antwerp
time of creation: Western Europe, circa 1950
High-quality central diamond in old cut weighing about 0.40ct, exceptionally white and very, very pure. The center diamond setting was further embellished with blue baguette cut sapphires, all set in high grade white gold