Yes there are 1gram sets with all 4, however, if you're looking for value, more bang for your buck, you're better off going with standard coins, the larger sizes are cheaper with 1oz being the standard size. You'll have a much lower markup, and if you need to barter or trade small denominations just use junk silver or something smaller. I suppose if you're collecting it to collect it that works too and it has its own reasons, but those sets are not in a standard bullion dealers inventory so you'll probably spend a little too much on the secondary market like ebay or somewhere they are usually higher.

not that I know of

are there any metal sets like the quattro preziosi that comes with 1g each of four precious metals? Im interested in getting this unless there are other sets to choose from thanks in advance!