Airflyte Optical Crystal - Diamond Series Clear Crystal Trophy with Cobalt Blue Crystal Base - Hand Polished and beveled to create the ultimate       recognition awards. Optical crystal is 100% lead free. Optical crystal     awards are suitable for laser engraving or sandblasting.                   All Airflyte Crystal Awards are packaged in satin-lined, padded gift boxes.9/16", 3/4", 7/8" thick respectively.