To sum up consensus while you read the duplicate that I VTC'ed this question with: Answers which are incorrect but do not suffer from being very low quality (spelling/grammar/comprehensibility/level of detail, etc.); are not offensive and do not make ad-hominem attacks; and actually attempt to answer the question being asked; should not be flagged for any reason.
The diamond moderators have enough on their plate; they don't need to contend with incorrect answers also. For that you just drop a downvote and the voting process will do its job to signal to people that wrong answers are... well, wrong. When it has a -6, would you take its advice? No? That's what I thought.
Example: If I asked, "What's 2+2?" and the answer was "I think it's 5." -- you would only drop a downvote (we're assuming here that the question and answer are significantly longer and contain more exposition than that).
If I asked "What's 2+2?" and the answer was "Unicorns are the best because their meat tastes like rainbows, so you should hunt unicorns to solve this problem", then you could flag it as "Not an answer". As long as the answer is a possible answer within the same framework of expected/possible answers to the original question, the diamond moderators should not be looking at this (unless they just stumble upon it).