  | Australia's Argyle Diamond mine is the world's primary source (95%) of rare pink diamonds. Pink diamonds are at very least 20 times the price of an equivalent white diamond. This places them in the realm of the most highly concentrated form of wealth on Earth. After being cut and polished at Rio Tinto’s diamond cutting and polishing factory in Perth, exceptional pink diamonds from each year's production are sold individually at 'tenders'. The diamonds average around a carat each with 40 to 50 carats in total sold each year. Of every million carats of rough diamonds produced at the Argyle mine, less than one carat is suitable for sale in one of the tenders. Prices can range from US $100k/ct to US$1m/ct and beyond. |    The Argyle mine will close by 2020. |
  |  8.41 carat Purple-Pink Diamond. It made $17,778,247 in 2015 |  In March 2012 a 12.76-carat pink diamond was unearthed at Argyle, the largest ever found. It was christened as the Argyle Pink Jubilee. |
 The 12.04-carat "The Martian Pink" sold for $17m in May 2012, twice it's pre-sale estimate of $ 8m. |  The Argyle Toki is a 1.59ct emerald cut Fancy Intense Purplish Pink diamond |
 The Argyle Siren, 1.32 ct. square radiant cut Fancy Vivid Purplish Pink, VS2 |  Laurence Graff set the entire first tender of Argyle pinks in this brooch |
 |  |  The 24.78 carat Graff Pink Diamond and a 5 carat Fancy Vivid Pink |
