September releases from The Perth Mint of Australia showcase a diverse selection of new coins, featuring intriguing themes, unique finishes, and compositions in gold, silver, and base metals.
The lineup spans the familiar and the unexpected — from annual Lunar Series favorites like the Year of the Horse to inventive showpieces such as the Extragalactic silver coin with patinaed treatment and diamond insets, and even a SpongeBob-themed collector issue. Together, these coins highlight the Mint’s ongoing blend of tradition and innovation, appealing to both seasoned numismatists and new collectors alike.
The Perth Mint’s September 2025 releases include:
- 2026 Year of the Horse 1 oz Gold Proof Coin
- 2026 Year of the Horse Silver Proof Three-Coin Set
- 2025 Great Southern Land 2 oz Gold Proof Blue Lepidolite Coin
- 2025 Australian Koala 5 oz Silver Proof High Relief Gilded Coin
- 2025 Extragalactic 5 oz Silver Patinaed Colored Coin
- 2025 Australian Wedge-Tailed Eagle 1 oz Rose Gold Reverse Proof Ultra High Relief Coin
- 2025 SpongeBob and Friends Collector Coin in Card
All of these products are available for order now directly from the Perth Mint. Mintages and additional details are provided below:
2026 Year of the Horse 1 oz Gold Proof Coin
Lunar coins are an annual staple from the Mint, with the 2026 Year of the Horse 1 oz Gold Proof Coin appearing as one of the latest issues of the Australian Lunar Series III. Each 99.99% pure gold coin features a striking image of a horse set against a mountainous background on its reverse (tails side). To the left of the design by Ing Ing Jong are the inscriptions HORSE, 2026, and the Chinese character for horse. The obverse (heads side) effigy of King Charles III was created by Dan Thorne and is surrounded by inscriptions noting the coin’s weight, fineness, and denomination.
Maximum mintage: 2,500; Issue limit: 1,000.
2026 Year of the Horse Silver Proof Three-Coin Set
A different horse design by Ing Ing Jong graces the reverse of the coins in the 2026 Year of the Horse Silver Proof Three-Coin Set, depicting a mare and her foal. Inscriptions read HORSE, 2026, and the Chinese character for horse. The obverse shows a left-facing portrait of King Charles III.
All three coins are struck from 99.99% pure silver in 2 oz, 1 oz, and 1/2 oz sizes. Mintages are capped at 2,000, 7,500, and 5,000, respectively, with an overall issue limit of 1,000 sets.
2025 Great Southern Land 2 oz Gold Proof Blue Lepidolite Coin
Uniqueness defines this issue. The 2025 Great Southern Land 2 oz Gold Proof Blue Lepidolite Coin celebrates Australia with a reverse design by Aleysha Howarth featuring native birds and insects. At its center is a blue lepidolite insert sourced exclusively from Western Australia.
Metal: .9999 fine gold; Maximum mintage: 200.
2025 Australian Koala 5 oz Silver Proof High Relief Gilded Coin
Another Howarth design, the 2025 Australian Koala 5 oz Silver Proof High Relief Gilded Coin shows a detailed image of a koala. Surrounding inscriptions include KOALA, the Perth Mint’s “P” mintmark, the coin’s weight, purity, and year. The koala and rim are highlighted in 22-karat pink gold gilding.
Metal: 99.99% silver; Weight: 5 oz; Maximum mintage: 750.
2025 Extragalactic 5 oz Silver Patinaed Colored Coin
This striking coin celebrates the study of galaxies beyond the Milky Way, with a reverse design of the Whirlpool Galaxy by Natasha Muhl. Each piece is individually treated to create a colorful patina and hand set with four diamonds — pink, golden, and two white — representing stars.
Metal: 99.99% silver; Weight: 5 oz; Maximum mintage: 1,000.
2025 Australian Wedge-Tailed Eagle 1 oz Rose Gold Reverse Proof Ultra High Relief Coin
Australia’s largest bird of prey is captured in ultra high relief on the 2025 Australian Wedge-Tailed Eagle 1 oz Rose Gold Reverse Proof Ultra High Relief Coin. Designed by former U.S. Mint Chief Engraver John M. Mercanti, the reverse features inscriptions of AUSTRALIAN WEDGE-TAILED EAGLE and 2025 1 OZ ROSE GOLD.
Maximum mintage: 175.
2025 SpongeBob and Friends Collector Coin in Card
Rounding out the September releases is the 2025 SpongeBob and Friends Collector Coin in Card, aimed at younger collectors. Jennifer McKenna’s design shows SpongeBob SquarePants and friends set against an underwater Bikini Bottom backdrop with flower motifs. Also present are the official SPONGEBOB SQUAREPANTS logo and the Mint’s “P” mintmark.
Maximum mintage: 7,500.
More information and ordering details for the above products are available directly from the Mint through its collector coin page.
