15 Dollars - Elizabeth II The Great Pyramids

Niue's status as a Cook Islands-adjacent Pacific microstate with a population under 2,000 makes it one of the more unusual sovereign coin issuers in the world — its numismatic program functions essentially as a revenue mechanism, with New Zealand handling its defence and foreign affairs. The Great Pyramids issue belongs to a broader wave of shaped and high-relief silver releases that flooded the collector market in the early 2010s, many struck by the Polish Mint on behalf of Pacific island nations.

The 3 troy ounce weight places it in a category designed to compete with bullion rounds while carrying legal tender status.