So exquisite, this lab-grown diamond cluster ring adds a burst of sparkle to your best looks. Platinum plating over sterling silver marquise-cut, pear-shaped and round-cut lab-grown diamonds sit atop a polished shank total lab-grown diamond weight is 3/4 carat independently certified a single lab-grown diamond in milgrain detailing is a signature element of the collection from the monique lhuillier bliss collection, available exclusively at kay