This center stone is selected by our diamond specialists is an Oval cut lab-grown diamond(HPHT), 1.58 carats, E Color, VVS2 Clarity, EX Cut, EX Symmetry. 9.19 x 6.61 x 4.13 mm. Ratio of 1:39. IGI certificate number is LG537250685. The original IGI lab grown diamond certificate will be included.