This sparkling 18k white gold ring features a bright 1.35 carat cushion cut Gemesis diamond n the center, with 40 white diamonds totaling 0.42 carats. Gemesis diamonds are 100% diamond, grown in a lab under extreme pressure from a natural diamond "seed". The process takes days, and the rough diamond is then cut, polished, and independently graded-exactly like a natural diamond. For the discerning customer who wants a real fancy colored diamond-but doesn't want to pay for the mining! Each Gemesis stone comes with a GIA or EGL Certificate.