The thing about sayings or myths is that I'm never entirely sure which are local, and I mean like 'Townland' local, and which are general to many regions. Our Townlands vary in size, with many rural ones comprising just a few homes, but a large area. I'm not sure how far ours stretches, for instance, but there's only eight houses in it (we counted!).
Anyhow it is said that dew drops or rain drops caught in a leaf are the diamonds of the Little People. We mayn't be rich in monetary terms, but we're sheer rollin' in diamonds!!