What is required for diversity of citizenship jurisdiction aside from the parties' citizenship?

For diversity of citizenship jurisdiction to be established, one of the requirements is that the claim must exceed a monetary limit, specifically the jurisdictional threshold set by federal law, which is currently $75,000. This monetary limit is essential as it prevents trivial cases from being brought in federal court and ensures that the federal judicial system addresses disputes of significant financial importance only.

In diversity cases, the federal courts can only hear claims where the amount in controversy exceeds this threshold, as it helps maintain the integrity and efficiency of the judicial system. The rationale behind diversity jurisdiction is to provide an unbiased forum for parties from different states, thus requiring a certain level of financial seriousness in the claims being brought forth.

The other choices do not pertain directly to the requirements for diversity jurisdiction. For instance, a federal question is relevant for federal question jurisdiction, common interest is not a jurisdictional requirement, and the number of defendants is not a component of establishing diversity jurisdiction as it pertains to party citizenship and the monetary threshold.