Ring Cocktail in white gold, tanzanite and dia

Ring at white gold 750 thousandths (18 carats). set with a tanzanite and diamonds. 1 rectangular cushion-cut tanzanite. total weight approx. 3.76 cts. surrounded by 18 diamonds: 6 diamonds approx. 0.05 ct each. 4 diamonds diamonds approx. 0.13 ct each. 4 diamonds marquise, approx. 0.18 ct each. 2 diamonds trapeze approx. 0.18 each and 2 diamonds baguette approx. 0.16 ct each). total weight diamonds approx. 2.20 cts. top width 1.68 cm. Size size: 51. total weight: 17.36 g. owl hallmark. excellent condition.