Rio Tinto Diamond Coins Have $1.4M Price Tag

Rio Tinto has teamed up with the Perth Mint to release a $1.4 million (AUD 1.8 million) collection of coins featuring three colored diamonds from the Argyle mine. The “Australian Trilogy” comprises a trio of coins from gold, platinum and rose gold, hand-crafted with pink, purple-pink and violet diamonds from the Rio Tinto-owned mine in … [Read more…]