A natural diamond is a diamond that is formed under high pressure and high temperatures that exists about 100 miles below the earth’s surface. A natural diamond is mined from the earth, cut, polished, and set into jewelery.
Lab-grown diamond jewelry is a new addition to your collection, but it is also a cost-effective option that means you can expand your jewelry collection, the cost is approximately 20-30% lower than natural diamonds. The only difference between a lab-created precious stone and a Natural diamond is its origin. A lab-made diamond is "created" inside a facility using innovative technology that resembles the standard diamond development procedure. Lab-formed diamonds are artificially, authentically, and outwardly indistinguishable from those found beneath the Earth's surface.
Comparing lab-grown versus natural diamonds side by side, you won’t be able to tell the difference. The same goes if you closely examine the stone with a jeweler’s loupe, which typically has a 10x magnification. A diamond’s identity as a lab-grown stone can only be determined by gemological experts using specialized instruments to pick up trace elements and other signatures related to the way the diamonds are grown.
The only thing that makes a lab-created diamond different from a natural diamond is its origin. A lab-created diamond is “grown” inside a lab using cutting-edge technology that replicates the natural diamond growing process. The result is a man-made diamond that is chemically, physically, and optically the same as those grown beneath the Earth’s surface.
Lab diamonds are not fakes. They’re not cubic zirconias. They have all the same physical and chemical properties of a mined diamond.” Stephen Morisseau, a spokesman for the Gemological Institute of America, a nonprofit organization that oversees the international diamond grading system. Source
Sometimes, lab-created diamonds are referred to as synthetic diamonds. While not technically inaccurate, term “synthetic” may be the reason people believe lab-created diamonds are “fake.”