The product is a rare 1kg Perth Mint 999 silver Diamond Jubilee coin, minted in 2012 with a proof strike type. This highly sought-after collector's item features a fineness of 0.999 and contains a substantial 1kg of precious silver content per unit. Produced by the reputable Perth Mint, this coin is a valuable addition to any coin collection, especially for those interested in commemorative pieces marking significant anniversaries.