The quality of blank crystal is difficult to distinguish, also 3d engraving quality is difficult to distinguish. Different blank crystal, different image/graphics and the proceeding ways, different point-cloudy converting method, different laser, different dot diameter, different dots quantity, different machine, different operator lead to the different engraving quality. We are the designer and producer of the crystal, and establish a 3d crsytal laser subsurface engraving center. The operators with several years' experience know how to adjust the machine and engrave the images/graphics inside the crystals with the best quality.
Contact us for subsurface engraving business.