Certified Lab Grown Diamond Pear-Cut Halo Engagement Ring (1-1/5 ct. t.w.) in 14k White Gold Impressive sparkle. Impressive price. Our beautiful engagement ring will leave her speechless, featuring a superb 1.00 carat pear shaped lab grown diamond alongside 0.22 cttw. Round lab grown diamonds of the same kind that stud the slender 14kt white gold ring. Our lab-grown diamond jewelry in 14kt gold includes an IGI Laboratory-Grown Diamond Report to verify color, clarity and carat weight.