I’m convinced it’s a black carbonado diamond, anyone else agree?

It randomly appeared out of no where in my crystal collection in October.. at least that’s when I noticed it. And I’m constantly going through my collection and I disregarded it at first I thought it was ugly like a fish tank rock or something lol. Then pulled it out in November and really started studying it looked into it and I got carbonado black diamond. So I’m looking for opinions.