The Beauty Of Pink Diamonds
Whilst red diamonds are acknowledged as ‘the’ rarest of all the natural fancy coloured diamonds, pink diamonds are considered by experts to also be one of the rarest natural diamonds on earth (along with purple, green, blue, violet and pure oranges). Due to this rarity it is estimated by experts that pink diamonds can cost at least 20 times the price of its colourless (white) equivalent and they are highly sought after by diamond collectors and connoisseurs worldwide for their personal collections and bespoke items of jewellery. So what is it about pink diamonds that makes them so impressive? Let’s take a closer look:
In short: Pink diamonds come from a unique lattice distortion rather than impurities, with the now-closed Australian Argyle mine historically supplying 90% of world supply. Fancy vivid pink prices reach £500,000-£2,000,000+ per carat at auction. Lab-grown pink alternatives deliver the same hue and Mohs 10 hardness for £3,000-£7,000 per carat in UK 2025 pricing — most are GIA or IGI certified.
Where in the world are pink diamonds found?
Pink diamonds have been found in diamonds mines within Africa and India but the Argyle Diamond Mine owned by the Rio Tinto company and located in the East Kimberley region in the remote north of Western Australia, is the world’s only consistent source of pink diamonds. This mine accounts for more than 90-95% of the world’s supply of pink diamonds and also yields the highly rare red diamonds, blue, brown, cognac and champagne fancy coloured diamonds. Despite only opening in 1985, due to the low yield of gem-quality stones, the Argyle Diamond Mine is expected to close by 2020 which further adds to the scarcity and rarity value of pink diamonds Argyle have estimated that “for every million carats of rough pink diamonds produced from the mine, only one polished carat is offered for sale by annual tender.” To put that in perspective, for every 200kg of rough pink diamond that is mined at Argyle, only 0.2g is offered for sale each year as part of the exclusive Argyle Pink Diamonds Tender.
