Australian Platinum Coins overview
Australian Platinum Coins represent the platinum bullion and numismatic issues struck by the Perth Mint on behalf of the Australian government. This category includes platinum coins across the full range of denominations and weights produced for the Australian market, spanning one-ounce, half-ounce, quarter-ounce, and…
Updated June 2026
Australian Platinum Coins
Australian Platinum Coins represent the platinum bullion and numismatic issues struck by the Perth Mint on behalf of the Australian government. This category includes platinum coins across the full range of denominations and weights produced for the Australian market, spanning one-ounce, half-ounce, quarter-ounce, and tenth-ounce formats, as well as select fractional and proof issues. Coins are denominated in Australian dollars and carry legal-tender status. The most recognized series within this category is the Australian Platinum Koala, which debuted in 1988 and features annually rotating reverse designs depicting the koala in various natural settings. The obverse carries the Ian Rank-Broadley effigy of Queen Elizabeth II on earlier strikes and, on more recent issues, the Jody Clark portrait. All standard bullion issues are struck in .9995 fine platinum. The Perth Mint's proof and special releases within this family are known for their high production quality and individually numbered certificates of authenticity included with packaged coins. On CoinDuffle, buyers will find Australian Platinum Coins listed by multiple specialist dealers, covering a range of years from the series' early issues through recent mintages. Listings span BU bullion strikes, proof coins in original Perth Mint packaging, and raw singles across various grades. Sub-categories may include specific series such as the Platinum Koala or special collector sets, allowing buyers to narrow their search by format or year.
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About Australian Platinum Coins
Australian Platinum Coins represent the platinum bullion and numismatic issues struck by the Perth Mint on behalf of the Australian government. This category includes platinum coins across the full range of denominations and weights produced for the Australian market, spanning one-ounce, half-ounce, quarter-ounce, and tenth-ounce formats, as well as select fractional and proof issues. Coins are denominated in Australian dollars and carry legal-tender status.
The most recognized series within this category is the Australian Platinum Koala, which debuted in 1988 and features annually rotating reverse designs depicting the koala in various natural settings. The obverse carries the Ian Rank-Broadley effigy of Queen Elizabeth II on earlier strikes and, on more recent issues, the Jody Clark portrait. All standard bullion issues are struck in .9995 fine platinum. The Perth Mint's proof and special releases within this family are known for their high production quality and individually numbered certificates of authenticity included with packaged coins.
On CoinDuffle, buyers will find Australian Platinum Coins listed by multiple specialist dealers, covering a range of years from the series' early issues through recent mintages. Listings span BU bullion strikes, proof coins in original Perth Mint packaging, and raw singles across various grades. Sub-categories may include specific series such as the Platinum Koala or special collector sets, allowing buyers to narrow their search by format or year.
Frequently asked questions
The primary series is the Australian Platinum Koala, first issued by the Perth Mint in 1988. It features annually changing reverse designs centered on the koala. The Perth Mint has also produced limited platinum proof and commemorative issues over the years. The Koala series remains the most widely collected and traded Australian platinum program.
Standard bullion issues are available in one troy ounce (A$100), half ounce (A$50), quarter ounce (A$25), and tenth ounce (A$15) denominations. Proof and special editions have appeared in a broader range of sizes, including one-twentieth ounce formats. All coins carry Australian legal-tender face values, though their market value is determined by platinum content and collector demand.
Standard Australian Platinum Koala bullion coins are struck in .9995 fine platinum, which is the benchmark fineness for modern investment-grade platinum coins. Proof issues from the Perth Mint are produced to the same fineness. This specification is consistent across the series from its inception and is stated on the coin's packaging and certificates.
Bullion strikes are produced for metal content and issued in higher volumes, typically distributed in protective capsules or tubes without elaborate packaging. Proof coins are struck multiple times with specially prepared dies, yielding frosted relief against mirror fields, and are sold in individual Perth Mint presentation cases with numbered certificates. Proofs generally carry a premium over bullion strikes of the same weight and year.
CoinDuffle dealers list Australian Platinum Coins spanning the full run of the series, from early Perth Mint issues dating to the late 1980s through current-year releases. Availability of specific years and denominations varies by dealer inventory. Older dates and low-mintage proof years tend to appear less frequently and may command collector premiums above standard bullion pricing.