The Australian one-ounce gold piece (abbreviated as 1 oz and designated with Au for "gold") is a bullion coin format. Uniquely, in Australia there are two mints authorised to strike legal tender: the Royal Australian Mint (which also makes the country's circulating coinage) and the Perth Mint which only makes collector and bullion coins, as well as other bullion products.
Both mints endeavour to create coins with attractive designs, and to introduce new designs and themes often, in order to raise the numismatic value of the coins over the value of previous metal used.
The mint says about this coin:
"Launched in 2017, the Australian Swan was an instant hit with collectors who rushed to acquire the first release. Extremely popular ever since with many sell outs, the annual series continues in 2024 with an enchanting new design of the majestic waterbird. The coin’s high relief design captures the moment a swan settles on water. Portrayed in a magical moonlit setting, its long slender neck and large, outstretched wings are framed by the star-filled firmament."
The coin is a high relief version of the bullion ounce, and is struck on a thicker flan with a smaller diameter. | 
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