I think this was done unintentionally, but I tagged it [feature-request]. The new even flairier image-based flair doesn't include a ♦ if the user is a mod, but the old version did.
The combined flair doesn't show a ♦ either, but since that didn't exist before it's not really a "change". If you want to keep it consistent, it could show a count like the Area 51 proposer's box does: