Aoltes, a Kiseki Purple Heart Sapphire was the first moving coil cartridge I bought because I could not afford a Koetsu. I was thrilled with it and found its sound to be quite similar to the Koetsus of the day. I used it happily on an Oracle Delphi/SME iV combo but eventually sprang for a series of Koetsus for several years before moving on to my current Benz. Is your interest in Kiseki historical or are you actually considering using one?