She'll say "yes. " to this dramatic lab-grown diamond engagement ring. 14k yellow gold at the center, a 3-carat emerald-cut lab-grown diamond shimmers in a round-cut diamond halo more round-cut diamonds line the gallery, bridge and shank tapered baguette-cut lab-grown diamonds are channel-set at the flanks independently certified with a total lab-grown diamond weight of 3 3/4 carats from the adore® bridal collection