Ring Marguerite en white gold, sapphire and diamonds

Ring art deco in white gold 750 thousandths (18 carats) and paltinium 950 thousandths. set with a sapphire and diamonds. 1 cushion-cut sapphire. total weight approx. 3.19 cts. surrounded by 12 diamonds antique-cut sapphires, total weight approx. 0.96 ct. diamond weight approx. 0.08 ct). top width: 1.73 cm. hallmark owl and mascaron. excellent condition