I read rings are good, but the standard in most countries is 18 or 22kt - more rare in the US, and the lesser stuff discounted heavily. That is why .gov issued coins are recommended by some.
Here's my take on it -- rings in a time of chaos or hyperinflation work because when trading them no one is going to be following you home to see if you have a gold stash.
One wedding ring isn't going to alarm the person you're trading with, or the person behind you - and doesn't overwhelm a marginal system. You get your tomatoes, bread, light bulbs - whatever and don't worry about the change.
For anything other than a total breakdown or hyper inflation ( it is hard to gauge exactly how much "stimulus" is too much) gold funds, foreign currency, short term treasuries, the greenback, coins, etc are just fine...