Pink diamond is currently alive, in hiding

This headcannon states that Pink Diamond is in hiding, and supports the rebellion, to some degree. The evidence is that it should really be impossible to shatter a diamond, especially the military Diamond, which Pink Diamond may be.  Our only eyewitness of Pink Diamond's 'shattering' is Eyeball, a monocular moron. Jasper got her information from eyeball, presumably, and this won't be the first time the Crystal Gems were tricked into believing an important gem was dead.