Lot 509
  • 509

Superb fancy vivid purple-pink diamond ring

12,150,000 - 16,000,000 CHF
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  • diamond, platinum
Set with a pear-shaped fancy vivid purple-pink diamond of exceptional colour weighing 8.24 carats, between pear-shaped diamond shoulders, size 52.


Accompanied by GIA report no. 1172236883, stating that the pear-shaped diamond weighing 8.24 carats and measuring 16.89 x 10.46 x 6.72mm, is Fancy Vivid Purple-Pink, Natural Colour, SI1 Clarity, together with a Type IIa classification letter. Stamped Pt 950 for platinum. For further details on the central diamond, please refer to the GIA report. Side diamonds weighing a total of approximately 1.60 carat, on average G colour, VS clarity, as gauged and graded in the mount. No evidence of wear to the metal, in like-new condition. Gross weight approximately 6 grams.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Please note that colour, clarity and weight of gemstones are statements of opinion only and not statements of fact by Sotheby's. We do not guarantee, and are not responsible for any certificate from a gemological laboratory that may accompany the property. We do not guarantee that watches are in working order. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue, in particular to the Notice regarding the treatment and condition of gemstones and to the Notice regarding import of Burmese jadeite and rubies into the US.

Catalogue Note

Jean-Baptiste Tavernier, a French merchant and adventurer who was best known for acquiring the 'Tavernier Blue Diamond' that he subsequently sold to Louis XIV, first made a reference to pink diamonds in the early 17th century. Tavernier mentioned a very large pink rough diamond weighing over 200 carats, shown to him by Moghuls in the Kingdom of Golconda in 1642. This diamond named ‘The Grand Table’ and valued at 600,000 rupees at the time, is still the largest pink diamond recorded to date. The French merchant also purchased two pale pink diamonds around 1668 and drew the pictures of the stones in his travel book.


Since the 17th century, the value of coloured diamonds has considerably increased. Fancy coloured diamonds are rarer than near colourless diamonds as their hues come from a disturbance during the formation process of the stone deep in the earth. For all coloured diamonds except pinks, the colour comes from trace elements that interfere during the formation of the crystal. A diamond is composed of pure carbon; it is the intrusion of another atom that causes the colour: nitrogen for yellows, boron for blues. Concerning the pink diamonds, the colour is a consequence of a distortion of the crystal structure of the stone.

Fancy coloured diamonds are rare in nature, but the intensity of the colour is also an important characteristic of the stone. The Gemological Institute of America grades fancy coloured diamonds as: Faint, Very Light, Light, Fancy Light, Fancy, Fancy Intense, Fancy Vivid. Fancy Vivid colours are the most sought-after. The amazing stone offered in this auction displays a very bright and deep fancy vivid purple-pink colour. Even in the category “Fancy Vivid”, one can find different levels of intensity; the saturation and hue of this stone are absolutely exceptional.


The current record price ever paid at auction for a diamond or any gemstone is ‘The Graff Pink’, a magnificent 24.76 carat Fancy Intense Pink diamond, which sold at Sotheby’s Geneva in November 2010 for $46.16 million. The current record price per carat for a fancy vivid pink diamond ($2,155,332) was set by a 5.00 carat diamond, sold in Hong Kong in January 2009. Last year, in October, Sotheby’s Hong Kong offered a 8.41 carat Fancy Vivid Purple-Pink diamond, which sold for $17,778,247, a world auction record price for a fancy vivid pink diamond.