The colours reflected in the crystal are from a special coating on the underside of the pyramid. This example also has a recess created in the base, in which we can engrave a logo which will then be reflected up into the sides of the crystal pyramid. Some additional text could be engraved on the outer face and colour filled to increase contrast if required. These are made to measure items and can be made with 3 or 4 sides.
Australian Rainbow Pyramid