Contemporary, Invisible Diamond Ring with Tanzanite, Center Stone, 5.81 TCWThe center Blue Tanzanite is measured as 9.92 x 6.85 mm with estimated weight of 4.96 carat. The tanzanite is deep quality colored with strong brilliant faceting Setting is a wide 5.50 mm band, 18 karat white gold and is a sturdy new setting. The double row of diamonds are (20) princess cut diamonds, Invisible set measuring 1.60 mm. The total weight of the diamond are estimated as .85 carat.Quality of the diamonds are SI1-2 clarity and color is H.Ring size 6 GIA Gemologist inspected and evaluated & comes with appraisal for Insurance.