Center Stone: Lab Grown IGI certified, 5.58 Carat, D Color, Internally Flawless, Cushion Cut. Measures 11.96 x 9.06 x 5.92 mm. Excellent Polish, Excellent Symmetry, No Fluorescence. Band is 950 Platinum, size 6.5, with 10 colorless princess cut diamonds totaling 2.5 carats and then additional accent diamonds.