Seven Stunning lab created green emeralds 3/10 carats (ctw) are sandwiched between 12 sparkling lab-grown diamonds 1/6 carat (ctw SI1-Si2, G-H-I) in crisp polished 14 karat white gold and matching included 18 inch chain. Lab grown diamonds are man-made diamonds that are chemically, physically, and optically identical to diamonds originating from nature. Both have the same chemical composition and atomic structure, producing the very same durability, fire, and sparkle the only difference is the origin.