Today, the Royal Canadian Mint launches the Opulence Collection , exclusive numismatic masterpieces of exceptional craftsmanship featuring some of the world's rarest precious stones: pink diamonds from the famed Argyle mine. These jewels are the crowning element of pure gold and platinum coins that truly redefine rare. This new collection, headlined by the one-of-a-kind Ultimate , a one-kilo pure platinum pink diamond coin, was unveiled today at the Ottawa Art Gallery. "The Royal Canadian Mint's