The Platinum Platypus is a 1-oz .9995 fine (99.95%) pure platinum coin produced by Australia’s Perth Mint. The coin carries an A$100 face value but sells for the value of its platinum content plus a small markup.
The Platypus is more popular with collectors than with investors. When investors want platinum coins, they generally select American Platinum Eagles or Canadian Platinum Maple Leafs.
Platinum bars are other options when it comes to investing in platinum, and they carry lower premiums than platinum coins.