100 Dollars - Charles III Mars from Phobos

Niue's role as a Pacific issuer of collectible bullion is a product of a 1990s licensing arrangement that gave the island territory — population under 2,000 — the legal authority to produce New Zealand-backed legal tender for the collector market. The Mars from Phobos series imagines a crewed mission to the Martian moon, drawing on current ESA and NASA trajectory planning that genuinely favors Phobos as a staging point before any Mars surface attempt.

One troy ounce of four-nines gold at this diameter puts it squarely in the modern bullion-collectible format that Niue has used to generate the majority of its numismatic export revenue since the early 2000s.