A lush lab-created emerald is the showstopping centerpiece of this ring, accentuated by dazzling halos of lab-grown diamonds. 10k yellow gold and white rhodium two stepped halos of round-cut lab-grown diamonds surround the 10mm x 8mm oval-cut lab-created emerald more round-cut lab-grown diamonds sparkle on the slender shank total lab-grown diamond weight is 1/2 carat independently certified from the kay lab-grown diamonds collection