Perth Mint’s rare $1.8m coin trilogy sold

The pinnacle of the Perth Mint’s long-term association with Rio Tinto and Argyle Pink Diamonds, the Australian Trilogy is an incomparable combination of precious metals and rare, natural, fancy-colored diamonds unearthed from the Argyle Diamond Mine in the east Kimberley region of Western Australia. “This coveted collection of diamond-studded gold and platinum coins has raised […]