WD Lab Grown Diamonds specializes in manufacturing CVD lab grown diamonds, producing high-quality diamonds in just a few weeks, rather than the millions of years it takes nature to form a stone. Not only are these beautiful diamonds physically, optically and chemically indistinguishable from natural, mined diamonds, they also provide exceptional value. In fact, you can get a stone that is 30 to 40 percent larger than a mined diamond of the same cut and quality.