Rio Tinto reveals Argyle mine’s largest vivid pink diamond

The 2018 Argyle Pink Diamonds Tender collection

Rio Tinto has unveiled the largest vivid pink diamond in the 84-year history of its Argyle Pink Diamonds Tender during a world exclusive preview in Sydney.

The diamond, known as The Argyle Alpha, is a 3.14ct polished emerald cut diamond. It was a standout among the line-up of 63 rare pink, red and violet diamonds.

Rio Tinto chief executive Jean-Sebastien Jacques said, “Rio Tinto’s Argyle mine is the world’s only source of these highly coveted pink, red and violet diamonds, and we expect considerable interest in this year’s collection.

“The combination of strong demand and extremely limited world supply continues to support significant value appreciation for Argyle pink diamonds.”

Altogether the 63 diamonds showcased weighed a total of 51.48ct. This includes five fancy red diamonds, two purplish diamonds and three violet diamonds.

Following the viewings, the collection will be showcased in Sydney, Hong Kong and New York, with bids closing on October 10.

The Argyle mine is in the Kimberley region in Western Australia, and was until recently the world’s largest single producer of diamonds.

More than half a billion carat diamonds have been unearthed in the Argyle mine since its official commission in 1984.

Today, 95 per cent of the Argyle mine’s overall productivity is dedicated to industrial grade diamonds, and 5 per cent to gem quality.

The six ‘hero’ diamonds in the 2018 Argyle Pink Diamonds Tender:

  • Lot 1: Argyle Muse, 2.28ct oval-shaped fancy purplish red diamond
  • Lot 2: Argyle Alpha, 3.14ct emerald-shaped fancy vivid purplish pink diamond
  • Lot 3: Argyle Maestro, 1.29ct square radiant-shaped fancy vivid purplish pink diamond
  • Lot 4: Argyle Alchemy, 1.57ct princess-shaped fancy dark gray-violet diamond
  • Lot 5: Argyle Odyssey, 2.08ct round brilliant-shaped fancy intense pink diamond
  • Lot 6 : Argyle Mira, 1.12ct radiant-shaped fancy red diamond