In 2012 to celebrate the Queens Diamond Jubilee, the Perth Mint released a very Limited Issue Diamond Jubilee $25 Twenty Five Dollar Gold Proof Coin struck in solid fine .9999 Gold weighing one-quarter of an ounce of pure gold.
The reverse design depicts the original Mary Gillick portrait of Her Majesty Queen Elizabeth II while the obverse features the Fourth Portrait of Her Majesty Queen Elizabeth II by Ian Rank Broadley.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.