I have an older Concorde that’s black, I got it when I purchased my SL-1210MKII, which was used to DJ.
Black one is Concorde PRO, it was also available in Silver.
Both are old, original styli are conical (or elliptical).
Using a better stylus from the hi-fi OM series is significant upgrade, but still far away from magic that other inexpensive vintage hi-fi MM cartridges can do. You should really try some (on conventional headshell). Stanton 881s or Pickering XSV/3000 killing it (at very low cost). Ortofon M20 FL Super is another killer.