5 Dollars - Elizabeth II Baby Fawn

Niue's arrangement with the New Zealand Treasury allows it to issue legal tender coins with essentially no practical monetary function — a framework exploited heavily since the 1990s to produce collector pieces for the international market. This 1-gram gold piece is part of a long-running series of miniature fauna coins aimed squarely at the European collector market, where small-denomination gold with embedded stones has found consistent demand.

The diamond inclusion — 0.004 carats, barely visible to the naked eye — is a production choice made possible by advances in micro-setting used widely in Swiss and German coin minting facilities after roughly 2010.