Different shapes of lab-grown diamonds make a big showing in this dazzling necklace. 14k yellow gold oval-cut, marquise-cut, baguette-cut and round-cut lab-grown diamonds gleam in bezel settings along the design total lab-grown diamond weight is 1 1/2 carats independently certified 17-inch cable chain with 3-inch extender; lobster clasp from the kay lab-grown diamonds collection