Australian Koala 5 Ounce Silver Coin

This impressive 5oz silver proof high relief coin features the 2018 Australian koala design, showcasing one of Australia’s most loved marsupials.

The coin is struck by The Perth Mint from 5oz of 99.99% pure silver in proof quality, and issued as egal tender under the Australian Currency Act 1965.

The Perth Mint will release no more than 500 of the Australian Koala 2018 5oz Silver Proof High Relief Coin.


The coin’s reverse features a koala astride two branches in a flowering eucalyptus tree. The design includes the inscription AUSTRALIAN KOALA, The Perth Mint’s ‘P’ mintmark, and the 2018 year-date.

The Ian Rank-Broadley effigy of Her Majesty Queen Elizabeth II and the monetary denomination are depicted on the coin’s obverse.

The coin’s high relief reverse and obverse are minted on concave surfaces to ensure the optimum flow of metal is achieved by the strike of the die.


The coin is housed in a classic grey display case within a themed shipper and accompanied by a numbered Certificate of Authenticity.


Since 1998, Ian Rank-Broadley’s fourth effigy of HRH Queen Elizabeth has served with distinction as the obverse for coins of the UK and the Commonwealth (View Designer’s Profile).

Natasha Muhl is a designer and illustrator for the Perthbossa Mint. She is drawn to natural motifs, such as animals, birds, gems, and ocean life (View Designer’s Profile).

Coin Specifications:

Country:  Australia
Year Of Issue:  2018
Denomination:  8 Dollars (AUD)
Mint Mark:  P
Mintage:  500
Alloy:  .9999 Silver
Weight:  5 Troy oz (minimum 155.533 g)
Diameter:  50.600 mm
Thickness:  11.000 mm
Edge: Reeded
OBV Designer Ian Rank-Broadley
REV Designer Natasha Muhl
Quality: Proof

Keep up with all the latest coin releases from the world mints by clicking on CoinWeek’s World Coin Profiles Page.

NGC-Certified Australian Koala Coins Currently Available on eBay

 Pic  Title  Details
1 oz 2007 Australia Koala .999 Silver Coin NGC MS 69 First Year of Issue Current Price: $35.99
# of Bids: 0
Ending: 10 days 22 hrs 40 mins
2011P Australia $1 Koala 1oz Silver .999 Coin 1st 20000 Struck NGC MS70 w/ Pouch Current Price: $1.25
# of Bids: 2
Ending: 6 days 8 hrs 6 mins
2016 1 oz Australian Silver Koala Coin NGC MS70 Early Release - ER Current Price: $44.95
# of Bids: 0
Ending: 20 days 2 hrs
2011 P Australia Koala NGC MS69 Silver $1 Coin NGC - 1 of 1st 20k Current Price: $52.95
# of Bids: 0
Ending: 15 days 11 hrs 2 mins
2015 P Australia HIGH RELIEF 1oz Silver Koala $1 Coin NGC PF70 UC ER +COA/BOX Current Price: $108.88
# of Bids: 0
Ending: 36 days 22 mins
500 Mintage 2019 P Australia HIGH RELIEF 5oz Silver Koala $8 Coin NGC PF70 UC FR Current Price: $435.0
# of Bids: 0
Ending: 19 days 1 hr 56 mins
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