1 Dollar - Elizabeth II 200 Years Battle of Waterloo

The Battle of Waterloo bicentennial in 2015 generated an extraordinary volume of commemorative issues worldwide, and small Pacific island mints leaned heavily into the format — producing fractional gold pieces at price points accessible to casual collectors rather than serious numismatists. Solomon Islands had no historical connection to Waterloo whatsoever; the coin exists purely as a bullion-adjacent souvenir timed to the anniversary.

At 0.585 fineness, this sits below the 22-karat threshold common to sovereign bullion coinage — a cost-reduction choice that keeps melt value negligible on a half-gram planchet.