TREASURES OF AUSTRALIA -DIAMONDS! What a great Christmas gift for the hard to find person or that business associate. Issued in the year 2009 by The Australia Perth Mint. Nominal value: 1 Dollar Weight: 1 Oz of silver .999 Diameter: 40.6 mm / Proof struck. Contains 1-Carat of Diamonds! Only 7500 pcs were issued. Very few are coming up on the market for resale.