Technically sound reasoning, however, in practical terms, under those conditions, gold will become illiquid and you won’t be able to use it. Not to mention that it will be difficult to carry gold with you due to the weight as well as the fear of getting robbed.
If you do decide to collect gold I suggest 24k bullion rather than 18k jewelry since you will be paying more for your gold in jewelry form. Just my 2 cents. 