Australia is one of the largest gold producers in the world, and the continuous stream of the precious metal flowing out of Australia's mines allows both the Perth Mint and the Royal Australian Mint the opportunity to strike a wide variety of Gold Commemorative coins.
The Royal Australian Mint strikes an annual Gold Proof set that features all of the country's circulating coins struck in pure gold. The 2015 Gold Year Proof Set features six coins and has an incredibly low mintage of 100 sets. Other recent Mint issues feature Roadside animal warning signs for the Kangaroo and Emu. Like many commonwealth countries, the Mint has issued a 2015 three-coin gold set honoring the milestone event of Queen Elizabeth II becoming the longest reigning monarch in British history.
The Perth Mint has also struck a 2015 Longest Reigning Monarch Gold Proof. Its Discover Australia Gold Coin series features Australia's iconic animals. These coins are struck in one twenty-fifth, one-tenth, and one-half Troy ounce sizes. A quite unique Treasures of Australia series features Gold Coins with lockets holding actual samples of the treasures such as beads of pure gold and pearls.
The most well known of these Australian Gold coins is the Australian Gold Sovereign, struck annually by the Perth Mint.