A unique $1.8 million coin collection boasting fancy coloured diamonds has been unveiled at the Perth Mint and is likely to be snapped up by an international buyer.
The Australian Trilogy is comprised of three coins struck from gold, platinum and rose gold, with each featuring a different native animal.
Each of the one-kilogram coins is also hand set with a natural fancy coloured diamond from Rio Tinto's Argyle mine in WA.
One coin, crafted from 99.99 per cent pure gold, depicts two kookaburras on a wooden fence looking at a 0.47 carat round brilliant cut fancy deep purple-pink diamond.
The kangaroo coin, crafted from 99.95 per cent pure platinum, shows the marsupial in an outback plain with a 0.46 carat emerald-cut fancy dark grey-violet diamond.
The 91.67 per cent rose gold koala coin displays the animal beneath a eucalyptus tree beside a 0.58 carat emerald-cut fancy intense pink diamond.
Visitors to the Perth Mint can view the collection in the retail shop for the rest of the month.
An international buyer from north Asia or the Middle East is expected to purchase the collection.
The 2016 Kimberley Treasure coin, valued at $1 million, sold to an international buyer within 48 hours.
