Laser inscription can be on Natural diamond and must be on Lab-grown diamonds.
Diamond inscriptions are marks or symbols engraved into the surface of a diamond. Inscriptions may be made for a variety of reasons, including to provide information about the diamond's authenticity, to certify its quality, or to serve as a sentimental keepsake. Inscriptions are made using a microscope and a laser, and are not visible to the naked eye.
Lab-grown diamonds can be inscribed with any message you choose. The inscription can be done using laser technology and is a permanent mark that can be seen with a microscope or loupe. Inscriptions can be letters, numbers, symbols, images, or any combination of these.
On the market, Gemscribe is the best laser engraving machine. Almost all diamond laboratories use Gemscribe, and all lab-grown factories use Gemscribe.
The Gemscribe machine was reliable and did not damage the stone at all