Lot 420. Important 8.20 carats fancy purplish pink diamond ring. Estimate 1,920,000 — 3,840,000 CHF (1,754,719 - 3,509,437 EUR). Sold for CHF3,610,000 ($3,696,098). Photo Sotheby's

Set with a cushion-shaped fancy purplish pink diamond weighing 8.20 carats, size 50. 

Accompanied by GIA report no. 2175177629, stating that the diamond is Fancy Purplish Pink, Natural Colour, VVS1 Clarity; together with a working diagram stating that the diamond may be internally flawless after minor repolishing. 

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 17 mai 2016, 10:00 AM