It's "valuables are". Some nouns, like "valuables", are typically used in the plural and take a plural verb.
It's "valuables are" (not "valuables is"). Some nouns, like "valuables", are typically used in the plural and take a plural verb.
My valuables are in the safe.
My valuables is in the safe.
The word valuable (without "s") is an adjective, not a noun.
That painting is extremely valuable.
Since "valuables" is a plural noun, we use a plural pronoun to replace it.
The valuables are in the box. They should be protected in flood-proof areas of the house.
A partial list of related terms that also take a plural verb:
