These are great dice—nice weight and size. However, the pictures on line make them seem dichromatic (in this case, purple and blue). However, the set I received did not have this effect, at least not to any perceptible degree. All I see is a dark sparklely blue. The crystaline line throughout is very cool—I think Emberglow might be the only ones doing this. I do love the dice, just wish mine had that dichromtic effect.