Diamond ring made of 0.750 gold

2 diamonds weighing approximately 0.50ct J-K/SI
25 diamonds weighing approximately 0.40ct J-K/ VS-SI
12 diamond baguettes weighing approximately 0.60ct H-I/VS-SI
centrally set modified blue sapphire
total weight of diamonds in the piece approximately 1.50ct
weight of the piece: 7.08g
time of creation: Western Europe, mid-20th century.