If you want Amethyst Custer in a larger size then here is a great grade one from Uruguay. With a flattish edge, it can sit upright or lay flat on a table. I cannot see any inclusions, and the colour goes down to the base. Check the photos for any damage which seems to just be at edges where it is broken from the larger piece that it was. And by the way do NOT leave amethyst in sun else it fades.
Many customers talk about the great experience meditating and healing this this crystal. Loads of people notice how their anxiety lessens, peace of mind comes in allowing insights and psychic talents to occur when they are around it. Let it promote positive dreams and then aid you in their interpretation.