This center stone is selected by our diamond specialists is an Oval cut lab-grown diamond(HPHT), 1.23 carats, E Color, VS1 Clarity, EX Cut, EX Symmetry. 8.57 x 6.06 x 3.78 mm. Ratio of 1:41. IGI certificate number is LG536274635. The original IGI lab grown diamond certificate will be included.