An Argyle pink and white diamond floral ring, by German goldsmiths Hans D.Krieger. Featuring one cushion cut Pink Argyle diamond of reported weight 0.42 carats, 6PP colour, VS1 clarity with Argyle certificate. Six cushion cut white diamonds of reported totalweight 0.82 carats, G colour, VVS clarity, two pear cut white diamonds of reported totalweight 0.30 carats, G colour, VS clarity. Sixty-eight round brilliant cut white diamonds of reported totalweight 0.34 carats, G colour, VS clarity. Platinum hallmarks. Total weight of ring 10.57 grams. Stamped 'Partridge Jewellers'. Ring size Q. Gemmologist's report. With the era of the Argyle mine now closed, Arygle Pink diamonds have become irreplaceable, and the increased 'connoisseurship' of Argyle pink diamonds has triggered a chain reaction that has sent prices soaring. The mine was home to the world's most vivid pinks and reds and these incredible colours made up less than 1% of the mines output. A year's supply would fit in a single champagne flute and demand has constantly outpaced the supply. Today, Argyle Pink diamonds are coveted by many collectors due to their predicted investment value. The most famous pink diamond produced by the Rio Tinto Argyle operation is the 'Pink Jubilee'. The Pink Jubilee is the biggest rough pink diamond ever found in Australia and weighed a staggering 12.76 carats in it's rough state. The most expensive coloured diamond sold in history is a 59.60ct Fancy Vivid Pink oval brilliant named 'The Pink Star' by Sotheby's, for US $71.2 million in 2017.