Important and Fine Fancy Vivid Yellow Diamond and Diamond Ring

Set with an emerald-cut fancy vivid yellow diamond weighing 10.30 carats, flanked by two emerald-cut diamonds weighing 1.60 and 1.39 carats respectively, to the shoulders decorated by circular-cut diamonds, mounted in 18 karat white gold. Ring size: 5½

Dimitri Mavrommatis: The Passion of Collecting, sold by Sotheby’s Geneva on 12 November 2014, lot 467 

Colour and Clarity: According to three GIA reports, the 10.30 carat emerald-cut diamond is natural, Fancy Vivid Yellow Colour, VS1 Clarity; and the 1.60 and 1.39 carat emerald-cut diamonds are both D Colour, Internally Flawless. Please refer to the reports for details. In our opinion, the yellow diamond has very nice brilliance, of saturated yellow colour with slightly brownish tint. The circular-cut melee diamonds together weighing approximately 1.00 carat, are about E to F colour, mainly VS clarity (with a few SI clarity). Condition: Karat white gold mount with karat yellow gold prongs. Overall in very good condition.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. 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. Illustrations in the catalogue may not be actual size. Prospective purchasers are reminded that, unless the catalogue description specifically states that a stone is natural, we have assumed that some form of treatment may have been used and that such treatment may not be permanent. Our presale estimates reflect this assumption.Certificates of Authenticity: Various manufacturers may not issue certificates of authenticity upon request. Sotheby’s is not under an obligation to furnish the purchaser with a certificate of authenticity from the manufacturer at any time. Unless the requirements for a rescission of the sale under the Terms of Guarantee are satisfied, the failure of a manufacturer to issue a certificate will not constitute grounds to rescind the sale. Gemological Certificates and Reports: References in the catalogue descriptions to certificates or reports issued by gemological laboratories are provided only for the information of bidders, and Sotheby’s does not guarantee and accepts no responsibility for the accuracy, terms or information contained in such certificates or reports. Please also note that laboratories may differ in their assessment of a gemstone (including its origin and presence, type and extent of treatments) and their certificates or reports may contain different results.NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD “AS IS” IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

Accompanied by GIA report numbered 13097707, dated 16 January 2004, stating that the 10.30 carat diamond is natural, Fancy Vivid Yellow Colour, VS1 Clarity. Please note that the certificate is more than 10 years old and might require an update.
Further accompanied by two GIA reports numbered 2165064929 and 1102453860, dated 11 September 2014 and 18 September 2014 respectively, stating the 1.60 and 1.39 carat diamonds are both D Colour, Internally Flawless.