Every yes moment in your romance shines in the twist design of this gorgeous certified pear-shaped lab-grown diamond engagement ring from kleinfeldâ® x zales. Fashioned in sleek platinum the 3 ct. Certified pear-shaped lab-grown diamond sparkles atop round lab-grown diamond-lined twist ribbons. F color/vs2 clarity lab-grown diamond this engagement ring reflects your love with 3-1/2 cts. T. W. Of lab-grown diamonds. This style includes a qr code tag to access your gsi certification report. Designed exclusively for zales.