Money cannot usually be counted. You can count dollars, pounds, etc, but can you show me two monies? It does have a plural- monies is used in legal texts, but then, while plural, you won't be able to produce two of them. The same is true of furniture- you can't count it, but you can count chairs and beds. You can count jewels, but I think you may mean jewellery- you can't usually count it, but you can count rings.