Well, think of Gold as the odd ball, meaning that its in all kinds of shapes, rings are in different sizes and then they are clunker rings and dinky rings, men's, women's, ear rings, necklaces, then you have different K's, 10K, 14K, 18K, then you have mixed metal Silver&Gold, ect....
So, the ones that dig the most Jewelry are the ones willing to spend the time digging the junk, as that's where most of the gold's range is.
Beep&Diggers (no ID Meter) find a lot because they dig every good signal starting at the upper range of Foil.
VID machine hunters sorta does the same thing except in using the meter we know where there less likely to be in the VID range, for example,
A good number of the Large class rings (or the like) we hit in the US Zinc penny range so that puts a bit of a ceiling on the gold range. The know that the tiny stuff like ladies pinky rings and many ear rings fall into the foil range. So, now the gold range has been established, every good signal from foil to zinc pennies would have to be dug to remove most doubt that didn't pass over a good gold target.
And then you have the problem with tiny linked gold chains, Detectors don't see it as a pile of gold or an accumulation of total weight but as one single link, so unless the chain is made up of larger links or has something hung on it, or something else near it then most detector want detect it.
Gold, is a problem to find in that its conductive range puts it in so much of the trash range. But, at its price now it really is worth going after.
Mark