No, but I'd have little to worry about from something like that anyway. [Padparadscha almost seems amused at the implication, especially since they're not only stone in appearance. Corundum is only outstripped in hardness by diamond itself, so anything of flesh and bone doesn't present much of a threat to them.]

We are formed, but it's a rare thing. Often a hundred or more years pass between the emergence of new gems. As you suspect, though, we have no concept of death in the way living things do. We continue to exist, regardless of other things.

[They can be taken away and ground into dust, but even that isn't true "death" to them. And if the dust can be gathered together again, they can be reborn, even if it takes time.]