I was looking a stone today that seemed lovely. I noticed that the GIA report has a comment which says, Laser grooves and surface graining not shown. I am not sure what "laser grooves" are. I am assuming this means that the diamond was cut using a laser and "laser grooves" are the marks left during the cutting processed as opposed to laser drill wholes which would mean the diamond was enhanced. Can someone tell me if my guess is correct or whether this stone should be discarded out of hand??? Thanks!