This stunning lab-grown diamond necklace from the unstoppable love collection radiates elegance. 10k white gold the brilliant round-cut lab-grown diamond centerpiece moves and sparkles from every angle, just like your love round-cut lab-grown diamonds adorn the shimmering cushion-shaped halo total lab-grown diamond weight is 3 carats independently certified 17- to 19-inch adjustable curb chain; lobster clasp from the kay lab-grown diamonds collection