100 Dollars - Charles III Southern Cross

Niue has been a prolific vehicle for commemorative bullion programs since New Zealand's Realm arrangements gave it treaty-backed legal tender status, making its coinage technically valid despite the island's population sitting under 2,000. The Southern Cross series continues that commercial licensing model, where the issuing "government" functions largely as a mint franchise rather than an independent monetary authority.

At 15.5g of .9999 gold, this sits at the half-troy-ounce weight class favored by Perth Mint and similar producers targeting collectors unwilling to commit to a full ounce premium.