The Miami Heat are known around NBA and sports circles for many things. Some of those things include being a buttoned-up organization, being able to get players in the best shape of their lives while also requiring that players maintain it, and for having as much stability amongst the organization as any team in the NBA. Something else that they are known for is being able to find gems.
In the real world, gems are expensive rocks found via mining, but most have to be polished before they shine as much as the world will see them shine upon obtaining their final form.