HD Edge™ is a unique engraving process that ensures your engraving shines brighter and more defined than any other crystal company. We custom-optimize your photo with both artificial intelligence and manual editing techniques to brighten dark areas and darken especially bright areas so each segment of your photo will show up with vibrancy. Dark portions of your image (such as tuxedos or hair) are created by spreading out dots further apart, making them hard to see and not well-defined, and bright portions (such as a wedding dress) condense dots close together, making them prone to "cracking" inside of your crystal. With our unique HD Edge™ process, we equalize your image so the dark portions show up brighter, without jeopardizing the crystal itself.