LotR -- Book 1 - Chapter 12 - Flight to the Ford

[Aiwendil]

Davem wrote:

There were the Silmarils, of course - did the loss of the Silmarils cause the Land to be laid waste - yet if so, how can it ever be healed, as they can never be won back. The Quest of the Silmarils ended with the First Age. I suppose the Trees could be the primal Grails

I think that the grail-quality of the Silmarils derives in large part from the Trees, since after the destruction of the trees the Silmarils alone contain their untainted light. If we look at the 1920s - 1930s mythology, the Silmarils will in fact be won back at the end of the world, after which Feanor will present them to Yavanna to be broken, and the Trees will be renewed. But the scale of that myth gives it more of a saviour/doomsday quality than a grail quality.