Brandberg amethysts are famous for being water-clear with internal purple "blushes" as exemplified by this beautiful crystal, Ex. Charlie Key collection. Tiny ding at the tip and one small natural contact on a face. There is an enhydro in this crystal - a pocket filled with trapped water, with a bubble that clearly moves back and forth inside it! You can see it move with the naked eye, but use a loupe if you cannot find it at first.