A solitaire cushion-cut lab-created blue sapphire gemstone 1.40 carat (ctw) sits in a crisp 14 karat white gold foundation while 44 sparkling lab grown diamonds 1/2 carats (ctw) form a double halo around the green gemstone creating a stunning emerald engagement ring. Blue Sapphire is the birthstone of the month of September. 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 origin.