Lot 460. 'The Historic Pink'.  Magnificent 8.72 carats Type IIa fancy vivid pink diamond ring. Estimate 13,650,000 — 17,500,000 CHF. Lot sold 14,810,000  CHF. Photo: Sotheby's 2015

Set with a cushion brilliant-cut fancy vivid pink diamond weighing 8.72 carats, between cushion brilliant-cut diamonds weighing 1.09 and 1.12 carats, size 52. 

Accompanied by GIA report no. 2145476525, stating that the central diamond is Fancy Vivid Pink, Natural Colour, VS2 Clarity, together with a Type IIa classification letter; and GIA report no. 2158045585 and no. 1156317506, stating that the two side diamonds are D Colour, VVS1 and VVS2 Clarity. 

Note: This exceptional vivid pink diamond was formerly in the collection of Huguette Clark, and weighed 9.00 carats, mounted in a ring by Dreicer. The ring was offered at auction in New York in 2012.  Since then there has been considerable research carried out on its history. The GIA monograph which accompanies the ring contains a summary, and excerpts are reproduced above in the additional images.

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 12 mai 2015