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Important 27.07 carats heart-shaped Type IIa diamond, D/VVS2 ringEstimation 4,570,000 — 5,850,000 CHF. Photo Sotheby's.

Set with a heart-shaped diamond weighing 27.07 carats, size 52, illustrated unmounted.

Accompanied by GIA report no. 10528347, dated 6 March 2000, stating that the diamond is D Colour, Internally Flawless; and an updated report stating that the diamond is D Colour, Clarity, together with a working diagram stating that the diamond might be internally flawless after repolishing, and a Type IIa classification letter. 

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 11 nov. 2015, 10:00 AM