Contemporary, Invisible Diamond Ring with Oval Sapphire, Center Stone, 4.89 CTWThe center Blue Sapphire is measured as 8.89-7.38 x 5.33 mm with estimated weight of 3.12 carat. The sapphire is lab grown from natural sapphire mineralSetting is a wide 8.40 mm band, 18 karat white gold and is a sturdy new setting for diamonds. The center row of diamonds are (6) baguette cut diamonds, Invisible set measuring 3.60 mm long x 2.27 mm. The outer diamonds are 2.00 mm princess-cut diamonds. The total weight of the diamond are estimated as 1.70 carat.Ring size 7Quality of the diamonds are VS1 clarity and color is H. GIA Gemologist inspected and evaluated & comes with appraisal for Insurance.