If you have many spare millions rattling around in your vault, you may want to put a bid in on this today. Offered by Sotheby’s Geneva, this 37.30 carat pink diamond, currently set in a ring, is claimed to be the world’s largest. Sotheby’s notes, “For most coloured diamonds, the hue comes from impurities that accidently interfere during the formation of the crystal at hundreds of miles deep in the earth. A diamond is mainly composed of pure carbon; it is the intrusion of another trace element that impacts the colour, such as nitrogen for yellow and boron for blues. The pink colour, on the other hand, may be the result of a distortion of the crystal structure that has yet resisted the attempts of explanation by science.

Pink fancy coloured diamonds are rare in nature, particularly those of large size. According to the GIA, the annual global pink-to-red diamond recovery could fit on the palm of one’s hand. The astonishing stone offered in this auction displays a combination of very bright and superb fancy intense pink colour. One can find different levels of colour intensity; the brilliance, hue and size of this precious gem are truly exceptional.

The current record price ever achieved at auction for a diamond or any gemstone is ‘The Pink Star’: one of the world’s great natural treasures later renamed ‘CTF Pink Star’. This magnificent Fancy Vivid Pink diamond weighing 59.60 carats was sold at Sotheby’s Hong Kong in April 2017 for $71.2 million.

The current record price per carat and for any Fancy Intense Pink diamonds was set by ‘The Graff Pink’ weighing 24.78 carats, sold in Sotheby’s Geneva in November 2010 for $46.2 million.

Discovered and mined in South Africa in 2015, the rough crystal was studied with extreme precision during the course of one year before it was passed to the hands of a master cutter.

“In observing the Raj Pink in its final form – a sparkling 37.30 carat cushion modified brilliant – one may fail to recognize the work behind its transformation from rough to polished. Though nature granted the gem with rare colour fine clarity, it was the cutter who capitalized on these qualities and brought the diamond’s innermost beauty to full display…”

The pre-sale estimate for this is 19,570,000 — 29,355,000 Swiss francs.