50 Dollars - Charles III Stadium

The "Stadium" coin is part of a broader wave of large-format gold issues from Pacific island sovereigns — Niue, Tuvalu, the Solomons — whose minting programs exist almost entirely for the international collector market rather than domestic circulation. The Solomon Islands itself has no meaningful gold mining output and issues no circulating gold coinage; the $50 face value is a legal fiction against a bullion value many times higher.

At 155.5 g of .9999 fine gold, this is a five-troy-ounce piece — a format that Perth Mint, which strikes the majority of these Pacific sovereign issues, has standardized for high-end collector releases since the early 2000s.