18 K white gold ring with a cabochon-cut dark blue star sapphire (approx. 12 ct) in the middle of an eight-prong setting, surrounded by 16 marquise (total approx. 2.65 ct, W, Vs) and 12 round brilliant-cut diamonds (total approx. 1 ct, M1 , W, Vs). Gross: 16.8 grams. Ring size: 56. Marked: with a posterior gold hallmark of 750 fineness used from 2016,.
