Gold Is more than a commodity. From my book "The New Gold Standard":

"Wealth is production, and gold is the equivalent of wealth
produced. Because neither wealth nor gold can be created out of
nothing, neither wealth nor gold are possible without individuals
of intelligence, individuals of ability, and individuals of productivity.
Fiat is force and it is the equivalent of wealth confiscated.

Both fiat and force are the tools of those that seek the unearned.
Where a gold standard is welcomed by productive and honest
individuals, the fiat standard is welcomed by those that prefer
government control and regulation. Where the gold standard
demands the earned, the fiat standard grants the unearned. Where
a gold standard evolves from individual choice, a fiat standard
evolves from government edict. Where a gold standard necessitates
only that individuals be left free to act, to choose, and to
trade, a fiat standard invites government to control, to regulate,
and to dictate individuals’ choices, actions, and the terms of trade.

Gold limits the government’s power to spend more money
than it receives in taxes and, in doing so, gold limits the government’s
arbitrary power over the economy; gold checks artificial
money and credit expansion; it prevents artificial booms, which
lead to very real busts; gold protects individuals from economically
unsound government programs; and it protects citizens from the
inflationary confiscation of private property."

Paul Nathan

Don't overlook silver. It has greater industrial usage and so will continue to have demand regardless of use in jewelry and as an investment.