As Mike just suggested, the OP asked specifically about mono cartridges with 1.0 mil styli. I am guessing he likes to listen to late 1940s/early 1950s mono LPs with wide grooves. For those discs, spherical is just fine. Unless you can dig up a vintage Grace mono, Miyajima is one of the few modern companies that produces a product suitable to the wide groove mono pressings.
Mono Cartridge
Still looking for a mono cartridge for my Technics 1200G. My first choice would have been Miyajima but have been told, by some, that it would not be compatible with my arm. I want to play older recordings so need a 1.0 mil stylus. Does anyone have experience with either the Phasemation PP-MONO or the ZYX R 1000 Airy 3M? They look interesting but couldn't find any reviews online.